年 |
1988 |
1989 |
1990 |
1991 |
1992 |
1月 |
2,228,000 |
2,509,000 |
2,270,000 |
2,361,980 |
2,215,656 |
2月 |
1,827,000 |
1,994,000 |
2,004,000 |
2,063,355 |
1,837,489 |
3月 |
1,682,000 |
1,776,000 |
1,875,000 |
1,911,709 |
1,544,626 |
4月 |
1,769,000 |
1,823,000 |
1,946,000 |
2,036,642 |
1,573,153 |
5月 |
2,027,000 |
2,062,000 |
2,180,000 |
2,272,809 |
1,848,147 |
6月 |
2,293,000 |
2,374,000 |
2,485,000 |
2,552,910 |
2,152,679 |
7月 |
2,567,000 |
2,644,000 |
2,791,000 |
2,771,080 |
2,459,804 |
8月 |
2,835,000 |
2,938,000 |
3,071,000 |
2,978,493 |
2,761,211 |
9月 |
3,120,000 |
3,187,000 |
3,321,000 |
3,201,378 |
3,044,070 |
10月 |
3,243,000 |
3,268,000 |
3,467,000 |
3,368,816 |
3,223,217 |
11月 |
3,171,000 |
3,199,000 |
3,472,000 |
3,147,855 |
3,053,853 |
12月 |
2,850,000 |
2,513,000 |
3,068,000 |
2,823,542 |
2,596,797 |
单位：百万立方英尺 |
