A total of 484 results found. Show Results on Map.
Rank | Fuel Oil, Kerosene, etc. Heating House Percentage ▼ | Zip / Population |
1. | 100.0% | 79831 / 11 |
2. | 72.5% | 79854 / 190 |
3. | 60.9% | 79240 / 82 |
4. | 54.6% | 79251 / 72 |
5. | 54.2% | 79842 / 547 |
6. | 54.2% | 79094 / 109 |
7. | 51.4% | 79845 / 4,886 |
8. | 48.2% | 79846 / 87 |
9. | 44.2% | 79834 / 183 |
10. | 34.1% | 79852 / 832 |
11. | 33.3% | 77467 / 85 |
12. | 28.6% | 76452 / 70 |
13. | 23.4% | 79256 / 395 |
14. | 22.4% | 77661 / 871 |
15. | 21.8% | 79244 / 548 |
16. | 21.4% | 79234 / 81 |
17. | 19.8% | 78563 / 152 |
18. | 19.7% | 79734 / 2,118 |
19. | 17.0% | 78075 / 98 |
20. | 13.9% | 79739 / 1,030 |
21. | 12.8% | 78376 / 589 |
22. | 12.8% | 79226 / 3,074 |
23. | 12.5% | 79748 / 134 |
24. | 10.4% | 79233 / 175 |
25. | 10.2% | 79830 / 7,559 |
26. | 10.1% | 78837 / 223 |
27. | 9.1% | 79063 / 625 |
28. | 9.1% | 79738 / 333 |
29. | 9.1% | 76941 / 1,361 |
30. | 8.8% | 78342 / 469 |
31. | 8.3% | 79843 / 2,685 |
32. | 7.9% | 79713 / 657 |
33. | 7.7% | 79062 / 332 |
34. | 7.5% | 79078 / 392 |
35. | 7.4% | 79068 / 3,054 |
36. | 7.4% | 79548 / 195 |
37. | 7.0% | 76930 / 160 |
38. | 6.8% | 75849 / 196 |
39. | 6.2% | 78349 / 491 |
40. | 6.0% | 79236 / 188 |
41. | 6.0% | 79237 / 554 |
42. | 5.7% | 79754 / 85 |
42. | 5.7% | 77451 / 63 |
44. | 5.5% | 79257 / 1,248 |
45. | 5.3% | 79042 / 1,124 |
46. | 5.0% | 79041 / 3,310 |
47. | 4.8% | 79532 / 913 |
48. | 4.6% | 79255 / 489 |
49. | 4.4% | 79043 / 1,587 |
50. | 4.1% | 79124 / 9,019 |
51. | 4.1% | 79036 / 5,246 |
52. | 4.1% | 79377 / 208 |
53. | 4.0% | 79351 / 1,479 |
54. | 3.7% | 79201 / 7,097 |
55. | 3.6% | 79561 / 529 |
56. | 3.5% | 78375 / 3,158 |
57. | 3.4% | 79506 / 818 |
58. | 3.4% | 79527 / 269 |
59. | 3.4% | 79241 / 2,556 |
60. | 3.3% | 75759 / 170 |
61. | 3.3% | 79045 / 19,628 |
62. | 3.3% | 76852 / 247 |
63. | 3.2% | 76871 / 799 |
64. | 3.2% | 79342 / 593 |
65. | 3.2% | 76305 / 4,659 |
66. | 3.1% | 75656 / 4,523 |
66. | 3.1% | 79088 / 5,881 |
66. | 3.1% | 79311 / 3,595 |
69. | 3.0% | 78353 / 553 |
70. | 2.9% | 79520 / 2,333 |
71. | 2.8% | 79261 / 659 |
72. | 2.7% | 79706 / 19,181 |
73. | 2.7% | 76250 / 912 |
74. | 2.7% | 75571 / 2,911 |
74. | 2.7% | 79248 / 1,577 |
76. | 2.7% | 79052 / 1,113 |
77. | 2.6% | 79019 / 1,607 |
78. | 2.5% | 76437 / 5,614 |
78. | 2.5% | 79543 / 1,123 |
80. | 2.5% | 78880 / 1,870 |
81. | 2.5% | 76932 / 3,504 |
82. | 2.5% | 76636 / 1,515 |
83. | 2.4% | 79108 / 16,698 |
84. | 2.3% | 76519 / 803 |
85. | 2.3% | 78002 / 8,556 |
85. | 2.3% | 76621 / 1,130 |
87. | 2.3% | 75438 / 970 |
88. | 2.3% | 76856 / 3,678 |
88. | 2.3% | 76360 / 3,537 |
90. | 2.2% | 76951 / 1,223 |
90. | 2.2% | 79367 / 678 |
92. | 2.1% | 76640 / 3,279 |
93. | 2.1% | 79250 / 1,374 |
94. | 2.0% | 75933 / 1,193 |
95. | 2.0% | 79079 / 2,483 |
96. | 2.0% | 78638 / 2,060 |
97. | 2.0% | 79057 / 1,167 |
98. | 2.0% | 76570 / 2,652 |
99. | 1.9% | 79848 / 957 |
100. | 1.9% | 76457 / 4,106 |
100. | 1.9% | 79533 / 461 |
102. | 1.9% | 79359 / 2,902 |
103. | 1.9% | 77420 / 1,780 |
104. | 1.9% | 79098 / 423 |
105. | 1.8% | 78151 / 1,284 |
106. | 1.8% | 79718 / 1,000 |
107. | 1.8% | 77975 / 1,918 |
108. | 1.8% | 75424 / 3,113 |
108. | 1.8% | 77363 / 3,202 |
110. | 1.7% | 79095 / 2,645 |
111. | 1.7% | 79370 / 1,891 |
112. | 1.7% | 79343 / 1,445 |
113. | 1.7% | 78850 / 1,240 |
114. | 1.6% | 77485 / 3,637 |
115. | 1.6% | 75574 / 2,169 |
116. | 1.6% | 76849 / 4,153 |
117. | 1.6% | 76859 / 2,064 |
117. | 1.6% | 75938 / 2,392 |
119. | 1.5% | 79836 / 5,067 |
120. | 1.5% | 78010 / 2,663 |
121. | 1.5% | 79360 / 13,582 |
121. | 1.5% | 75058 / 3,145 |
123. | 1.5% | 79027 / 5,049 |
123. | 1.5% | 79235 / 3,758 |
123. | 1.5% | 79526 / 986 |
126. | 1.5% | 76476 / 2,899 |
127. | 1.5% | 77423 / 9,342 |
128. | 1.4% | 78073 / 7,434 |
129. | 1.4% | 78560 / 4,180 |
129. | 1.4% | 77968 / 2,553 |
131. | 1.4% | 79084 / 2,486 |
132. | 1.4% | 79536 / 4,127 |
132. | 1.4% | 76875 / 714 |
134. | 1.3% | 78372 / 5,618 |
135. | 1.3% | 78163 / 10,348 |
135. | 1.3% | 78013 / 5,316 |
135. | 1.3% | 78256 / 6,878 |
138. | 1.3% | 79782 / 3,989 |
139. | 1.3% | 76239 / 1,214 |
140. | 1.3% | 79855 / 2,391 |
141. | 1.3% | 78379 / 1,469 |
142. | 1.2% | 77461 / 9,294 |
143. | 1.2% | 76858 / 203 |
144. | 1.2% | 79549 / 15,497 |
145. | 1.1% | 78341 / 2,711 |
146. | 1.1% | 78881 / 2,048 |
147. | 1.1% | 77417 / 2,451 |
147. | 1.1% | 75563 / 5,089 |
149. | 1.1% | 78133 / 15,635 |
150. | 1.0% | 76082 / 18,253 |
151. | 1.0% | 76676 / 504 |
151. | 1.0% | 76825 / 7,227 |
153. | 1.0% | 76252 / 3,368 |
154. | 1.0% | 77541 / 17,486 |
155. | 1.0% | 75650 / 8,508 |
156. | 1.0% | 78538 / 11,260 |
157. | 0.9% | 77951 / 2,256 |
157. | 0.9% | 76857 / 2,010 |
159. | 0.9% | 76483 / 885 |
159. | 0.9% | 76050 / 5,912 |
161. | 0.9% | 79118 / 19,322 |
161. | 0.9% | 77011 / 19,396 |
161. | 0.9% | 78573 / 35,169 |
164. | 0.9% | 76639 / 1,588 |
164. | 0.9% | 76380 / 3,805 |
166. | 0.9% | 76432 / 1,348 |
167. | 0.9% | 76853 / 1,394 |
167. | 0.9% | 75249 / 13,684 |
169. | 0.9% | 78956 / 5,292 |
169. | 0.9% | 79015 / 19,935 |
169. | 0.9% | 77830 / 2,646 |
169. | 0.9% | 75109 / 4,330 |
173. | 0.8% | 77517 / 5,840 |
174. | 0.8% | 78263 / 4,358 |
175. | 0.8% | 77316 / 15,082 |
176. | 0.8% | 79512 / 8,268 |
177. | 0.8% | 75948 / 6,068 |
177. | 0.8% | 77957 / 8,263 |
179. | 0.8% | 76638 / 2,960 |
180. | 0.8% | 78941 / 2,877 |
180. | 0.8% | 75409 / 11,766 |
182. | 0.8% | 75935 / 13,976 |
183. | 0.7% | 79104 / 7,498 |
184. | 0.7% | 78574 / 59,525 |
185. | 0.7% | 78734 / 17,824 |
186. | 0.7% | 78408 / 11,639 |
186. | 0.7% | 78634 / 22,731 |
188. | 0.7% | 75090 / 23,298 |
189. | 0.7% | 75704 / 7,941 |
189. | 0.7% | 79764 / 20,079 |
189. | 0.7% | 78655 / 3,684 |
189. | 0.7% | 77414 / 23,618 |
189. | 0.7% | 76538 / 884 |
194. | 0.6% | 76424 / 9,016 |
195. | 0.6% | 76837 / 3,233 |
196. | 0.6% | 77583 / 29,698 |
196. | 0.6% | 78612 / 11,564 |
198. | 0.6% | 76577 / 3,468 |
198. | 0.6% | 76272 / 5,007 |
200. | 0.6% | 78210 / 37,215 |
200. | 0.6% | 78959 / 1,910 |
202. | 0.6% | 78368 / 9,297 |
203. | 0.6% | 76301 / 17,137 |
204. | 0.6% | 75148 / 6,706 |
205. | 0.6% | 76049 / 25,069 |
206. | 0.5% | 76367 / 14,227 |
207. | 0.5% | 78840 / 48,064 |
207. | 0.5% | 78159 / 910 |
207. | 0.5% | 76802 / 5,342 |
207. | 0.5% | 76443 / 1,930 |
207. | 0.5% | 75236 / 15,081 |
207. | 0.5% | 79072 / 28,706 |
213. | 0.5% | 77320 / 36,204 |
213. | 0.5% | 77532 / 26,356 |
213. | 0.5% | 75418 / 13,918 |
213. | 0.5% | 78945 / 10,762 |
213. | 0.5% | 76023 / 6,247 |
218. | 0.5% | 78737 / 12,882 |
218. | 0.5% | 77872 / 1,607 |
218. | 0.5% | 76230 / 9,898 |
218. | 0.5% | 77488 / 14,659 |
222. | 0.5% | 79839 / 2,061 |
223. | 0.5% | 78744 / 43,452 |
223. | 0.5% | 77657 / 20,317 |
223. | 0.5% | 78739 / 16,911 |
223. | 0.5% | 75559 / 6,141 |
223. | 0.5% | 76265 / 1,638 |
228. | 0.5% | 76085 / 8,351 |
228. | 0.5% | 79545 / 1,749 |
228. | 0.5% | 75051 / 40,023 |
231. | 0.5% | 79756 / 8,927 |
232. | 0.5% | 78112 / 7,724 |
233. | 0.4% | 75954 / 3,098 |
233. | 0.4% | 78118 / 3,994 |
235. | 0.4% | 78621 / 21,352 |
236. | 0.4% | 77954 / 11,159 |
237. | 0.4% | 76878 / 1,804 |
237. | 0.4% | 75929 / 1,553 |
237. | 0.4% | 75431 / 1,862 |
237. | 0.4% | 75076 / 7,666 |
241. | 0.4% | 76444 / 3,355 |
241. | 0.4% | 75684 / 7,614 |
243. | 0.4% | 76667 / 11,360 |
243. | 0.4% | 75143 / 16,073 |
243. | 0.4% | 77030 / 11,184 |
243. | 0.4% | 77484 / 10,921 |
243. | 0.4% | 75401 / 18,743 |
243. | 0.4% | 77365 / 26,967 |
249. | 0.4% | 78220 / 17,109 |
249. | 0.4% | 78730 / 8,312 |
249. | 0.4% | 75104 / 45,349 |
249. | 0.4% | 75490 / 2,263 |
249. | 0.4% | 79601 / 26,920 |
254. | 0.4% | 76234 / 14,949 |
255. | 0.4% | 78255 / 10,721 |
255. | 0.4% | 79331 / 13,163 |
255. | 0.4% | 76903 / 31,457 |
255. | 0.4% | 77358 / 4,763 |
255. | 0.4% | 78204 / 11,326 |
260. | 0.4% | 79035 / 5,352 |
261. | 0.3% | 76134 / 23,985 |
261. | 0.3% | 79705 / 32,807 |
263. | 0.3% | 79731 / 4,134 |
264. | 0.3% | 77523 / 18,047 |
264. | 0.3% | 75844 / 5,987 |
264. | 0.3% | 78733 / 9,486 |
264. | 0.3% | 76542 / 39,631 |
268. | 0.3% | 76384 / 12,815 |
268. | 0.3% | 77057 / 39,463 |
268. | 0.3% | 78749 / 34,391 |
268. | 0.3% | 78559 / 12,238 |
272. | 0.3% | 77089 / 50,894 |
272. | 0.3% | 77984 / 4,247 |
272. | 0.3% | 75230 / 26,717 |
275. | 0.3% | 77437 / 16,975 |
276. | 0.3% | 77098 / 12,524 |
276. | 0.3% | 79735 / 13,368 |
276. | 0.3% | 75652 / 16,335 |
276. | 0.3% | 75964 / 19,780 |
276. | 0.3% | 77016 / 27,634 |
276. | 0.3% | 78109 / 36,406 |
276. | 0.3% | 79935 / 18,623 |
283. | 0.3% | 78606 / 5,117 |
283. | 0.3% | 78254 / 44,109 |
283. | 0.3% | 77836 / 11,722 |
283. | 0.3% | 79096 / 2,097 |
283. | 0.3% | 79107 / 34,568 |
283. | 0.3% | 77328 / 15,823 |
283. | 0.3% | 77006 / 19,856 |
283. | 0.3% | 78654 / 16,771 |
283. | 0.3% | 79323 / 6,002 |
283. | 0.3% | 78586 / 56,581 |
283. | 0.3% | 79410 / 9,078 |
294. | 0.3% | 75979 / 11,269 |
294. | 0.3% | 79381 / 1,223 |
294. | 0.3% | 77859 / 6,720 |
294. | 0.3% | 77545 / 19,440 |
298. | 0.2% | 79763 / 34,502 |
298. | 0.2% | 77706 / 28,379 |
298. | 0.2% | 78570 / 29,612 |
298. | 0.2% | 77407 / 29,180 |
298. | 0.2% | 75432 / 3,372 |
298. | 0.2% | 76645 / 11,357 |
298. | 0.2% | 78861 / 13,545 |
298. | 0.2% | 76092 / 26,778 |
298. | 0.2% | 75167 / 9,842 |
298. | 0.2% | 76107 / 25,642 |
308. | 0.2% | 77530 / 30,853 |
308. | 0.2% | 75414 / 3,265 |
308. | 0.2% | 75220 / 43,459 |
308. | 0.2% | 78626 / 27,412 |
308. | 0.2% | 78130 / 59,519 |
308. | 0.2% | 79510 / 7,974 |
314. | 0.2% | 77868 / 14,398 |
314. | 0.2% | 78644 / 16,820 |
314. | 0.2% | 77662 / 26,756 |
314. | 0.2% | 75219 / 20,965 |
314. | 0.2% | 75961 / 14,883 |
314. | 0.2% | 77590 / 30,607 |
314. | 0.2% | 77833 / 28,399 |
314. | 0.2% | 76656 / 2,711 |
314. | 0.2% | 77515 / 29,133 |
323. | 0.2% | 75140 / 6,811 |
323. | 0.2% | 77550 / 22,252 |
323. | 0.2% | 75672 / 16,710 |
323. | 0.2% | 75209 / 14,971 |
323. | 0.2% | 76655 / 9,183 |
323. | 0.2% | 78596 / 64,987 |
323. | 0.2% | 78584 / 18,225 |
330. | 0.2% | 77372 / 12,339 |
330. | 0.2% | 79821 / 7,305 |
330. | 0.2% | 75455 / 27,801 |
330. | 0.2% | 78724 / 21,677 |
330. | 0.2% | 78521 / 90,752 |
335. | 0.2% | 75686 / 12,981 |
335. | 0.2% | 78221 / 36,057 |
335. | 0.2% | 79070 / 10,193 |
335. | 0.2% | 77979 / 17,577 |
339. | 0.2% | 78542 / 64,876 |
339. | 0.2% | 77904 / 24,884 |
339. | 0.2% | 75460 / 23,183 |
339. | 0.2% | 76834 / 5,744 |
339. | 0.2% | 76901 / 28,149 |
339. | 0.2% | 77418 / 9,120 |
339. | 0.2% | 78628 / 23,288 |
339. | 0.2% | 75060 / 46,617 |
339. | 0.2% | 75423 / 3,238 |
339. | 0.2% | 78114 / 20,411 |
339. | 0.2% | 77360 / 4,771 |
350. | 0.2% | 79714 / 15,006 |
351. | 0.2% | 75835 / 12,216 |
351. | 0.2% | 75149 / 56,253 |
351. | 0.2% | 75062 / 46,027 |
351. | 0.2% | 77076 / 33,049 |
351. | 0.2% | 76006 / 23,771 |
351. | 0.2% | 77021 / 25,640 |
351. | 0.2% | 78541 / 42,904 |
351. | 0.2% | 75006 / 46,557 |
351. | 0.2% | 78363 / 30,318 |
351. | 0.2% | 77865 / 1,473 |
361. | 0.2% | 75503 / 24,032 |
361. | 0.2% | 79932 / 26,219 |
361. | 0.2% | 75662 / 24,080 |
361. | 0.2% | 75224 / 33,942 |
361. | 0.2% | 76086 / 20,448 |
361. | 0.2% | 77422 / 12,919 |
367. | 0.1% | 76012 / 24,962 |
367. | 0.1% | 78218 / 31,813 |
367. | 0.1% | 75231 / 34,306 |
367. | 0.1% | 75158 / 4,359 |
367. | 0.1% | 75501 / 36,888 |
367. | 0.1% | 77803 / 30,378 |
367. | 0.1% | 78006 / 27,475 |
374. | 0.1% | 77535 / 30,816 |
374. | 0.1% | 76132 / 24,978 |
374. | 0.1% | 75758 / 8,489 |
374. | 0.1% | 76657 / 8,830 |
374. | 0.1% | 76014 / 34,736 |
374. | 0.1% | 75217 / 82,842 |
374. | 0.1% | 76031 / 16,360 |
374. | 0.1% | 77963 / 5,692 |
374. | 0.1% | 78028 / 39,183 |
383. | 0.1% | 76182 / 28,996 |
383. | 0.1% | 76115 / 20,902 |
383. | 0.1% | 78216 / 37,759 |
383. | 0.1% | 75019 / 39,212 |
383. | 0.1% | 78238 / 25,054 |
383. | 0.1% | 79412 / 15,800 |
383. | 0.1% | 77964 / 8,059 |
383. | 0.1% | 75063 / 35,443 |
383. | 0.1% | 76692 / 9,318 |
383. | 0.1% | 78217 / 32,145 |
383. | 0.1% | 77079 / 30,626 |
394. | 0.1% | 75643 / 2,145 |
394. | 0.1% | 76905 / 12,434 |
394. | 0.1% | 76706 / 35,500 |
394. | 0.1% | 78572 / 73,032 |
394. | 0.1% | 75216 / 47,558 |
394. | 0.1% | 78552 / 36,600 |
394. | 0.1% | 78040 / 41,281 |
394. | 0.1% | 76011 / 22,590 |
402. | 0.1% | 78729 / 28,228 |
402. | 0.1% | 78239 / 27,870 |
402. | 0.1% | 78070 / 14,151 |
402. | 0.1% | 78526 / 44,808 |
402. | 0.1% | 78504 / 49,605 |
402. | 0.1% | 75771 / 18,104 |
402. | 0.1% | 78577 / 70,528 |
402. | 0.1% | 77019 / 19,450 |
402. | 0.1% | 75214 / 32,293 |
402. | 0.1% | 78237 / 36,131 |
402. | 0.1% | 77450 / 69,622 |
402. | 0.1% | 75204 / 26,207 |
402. | 0.1% | 78624 / 21,472 |
415. | 0.1% | 77474 / 12,956 |
415. | 0.1% | 79720 / 33,787 |
415. | 0.1% | 79904 / 33,652 |
415. | 0.1% | 76051 / 46,496 |
415. | 0.1% | 77642 / 37,560 |
415. | 0.1% | 76028 / 60,235 |
415. | 0.1% | 77033 / 28,001 |
415. | 0.1% | 79416 / 31,849 |
415. | 0.1% | 75093 / 46,690 |
415. | 0.1% | 75041 / 29,793 |
415. | 0.1% | 75754 / 5,623 |
415. | 0.1% | 75287 / 49,403 |
415. | 0.1% | 75002 / 64,067 |
415. | 0.1% | 75056 / 48,266 |
429. | 0.1% | 76210 / 40,132 |
429. | 0.1% | 78355 / 6,954 |
429. | 0.1% | 78212 / 28,318 |
429. | 0.1% | 78413 / 36,439 |
429. | 0.1% | 79065 / 21,324 |
429. | 0.1% | 78240 / 51,367 |
429. | 0.1% | 78641 / 47,490 |
429. | 0.1% | 79902 / 21,142 |
437. | 0.1% | 77489 / 35,577 |
437. | 0.1% | 78230 / 39,047 |
437. | 0.1% | 77630 / 26,984 |
437. | 0.1% | 75034 / 71,123 |
437. | 0.1% | 77388 / 40,457 |
437. | 0.1% | 77034 / 34,856 |
437. | 0.1% | 76017 / 43,245 |
437. | 0.1% | 78666 / 63,255 |
437. | 0.1% | 76010 / 54,169 |
446. | 0.1% | 75228 / 68,605 |
446. | 0.1% | 75241 / 28,162 |
446. | 0.1% | 75407 / 14,085 |
446. | 0.1% | 76013 / 31,753 |
446. | 0.1% | 79415 / 17,178 |
446. | 0.1% | 79022 / 10,744 |
446. | 0.1% | 78664 / 54,864 |
446. | 0.1% | 78245 / 57,534 |
446. | 0.1% | 75602 / 22,369 |
455. | 0.1% | 77840 / 55,364 |
455. | 0.1% | 78332 / 28,841 |
455. | 0.1% | 75142 / 18,920 |
455. | 0.1% | 78580 / 15,469 |
455. | 0.1% | 75052 / 89,829 |
455. | 0.1% | 78250 / 55,461 |
455. | 0.1% | 75032 / 29,088 |
455. | 0.1% | 77571 / 35,787 |
455. | 0.1% | 76112 / 38,016 |
464. | 0.0% | 79339 / 7,158 |
464. | 0.0% | 79762 / 40,731 |
464. | 0.0% | 76008 / 13,943 |
464. | 0.0% | 77573 / 71,418 |
464. | 0.0% | 77093 / 42,808 |
464. | 0.0% | 75043 / 57,596 |
464. | 0.0% | 77055 / 43,603 |
471. | 0.0% | 78610 / 24,313 |
471. | 0.0% | 79336 / 17,183 |
471. | 0.0% | 76227 / 22,013 |
471. | 0.0% | 78852 / 53,307 |
471. | 0.0% | 78251 / 51,095 |
471. | 0.0% | 77008 / 29,424 |
471. | 0.0% | 78380 / 23,351 |
471. | 0.0% | 78148 / 19,855 |
479. | 0.0% | 75098 / 46,887 |
479. | 0.0% | 79936 / 115,538 |
479. | 0.0% | 76020 / 27,284 |
482. | 0.0% | 79927 / 38,132 |
482. | 0.0% | 77007 / 29,545 |
482. | 0.0% | 75007 / 51,735 |
Please note that we only rank locations with 'Fuel Oil, Kerosene, etc. Heating House Percentage' data. The rank above might not be a complete list. Locations without 'Fuel Oil, Kerosene, etc. Heating House Percentage' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.