年 |
1998 |
1999 |
2000 |
2001 |
2002 |
1月 |
1,712,114 |
2,072,829 |
1,760,467 |
1,265,496 |
2,343,861 |
2月 |
1,426,200 |
1,745,681 |
1,303,564 |
912,366 |
1,837,865 |
3月 |
1,182,845 |
1,405,815 |
1,153,219 |
741,551 |
1,517,794 |
4月 |
1,386,101 |
1,495,274 |
1,202,518 |
992,263 |
1,658,541 |
5月 |
1,773,540 |
1,834,678 |
1,433,100 |
1,440,096 |
1,968,125 |
6月 |
2,113,570 |
2,149,270 |
1,717,307 |
1,882,431 |
2,308,175 |
7月 |
2,427,867 |
2,379,142 |
2,002,698 |
2,260,763 |
2,538,634 |
8月 |
2,698,034 |
2,610,196 |
2,198,996 |
2,575,798 |
2,773,379 |
9月 |
2,927,750 |
2,922,862 |
2,494,292 |
2,944,267 |
3,041,639 |
10月 |
3,191,256 |
3,073,445 |
2,732,267 |
3,143,972 |
3,115,902 |
11月 |
3,154,963 |
3,065,388 |
2,442,194 |
3,254,099 |
2,928,627 |
12月 |
2,729,704 |
2,523,186 |
1,718,926 |
2,903,514 |
2,375,233 |
单位：百万立方英尺 |
