年 |
1983 |
1984 |
1985 |
1986 |
1987 |
1月 |
2,644,000 |
2,091,000 |
2,242,000 |
2,213,000 |
2,280,000 |
2月 |
2,356,000 |
1,876,000 |
1,853,000 |
1,872,000 |
1,988,000 |
3月 |
2,148,000 |
1,572,000 |
1,743,000 |
1,764,000 |
1,879,000 |
4月 |
2,074,000 |
1,620,000 |
1,859,000 |
1,841,000 |
1,938,000 |
5月 |
2,222,000 |
1,843,000 |
2,129,000 |
2,076,000 |
2,206,000 |
6月 |
2,454,000 |
2,141,000 |
2,351,000 |
2,323,000 |
2,437,000 |
7月 |
2,696,000 |
2,456,000 |
2,605,000 |
2,570,000 |
2,636,000 |
8月 |
2,908,000 |
2,740,000 |
2,832,000 |
2,842,000 |
2,836,000 |
9月 |
3,141,000 |
2,996,000 |
3,081,000 |
3,066,000 |
3,049,000 |
10月 |
3,270,000 |
3,175,000 |
3,204,000 |
3,208,000 |
3,106,000 |
11月 |
3,175,000 |
3,015,000 |
3,086,000 |
3,077,000 |
3,059,000 |
12月 |
2,595,000 |
2,876,000 |
2,607,000 |
2,749,000 |
2,756,000 |
单位：百万立方英尺 |
