年 |
1978 |
1979 |
1980 |
1981 |
1982 |
1月 |
816,411 |
867,301 |
722,000 |
831,000 |
866,000 |
2月 |
837,768 |
892,145 |
774,000 |
740,000 |
786,000 |
3月 |
680,825 |
659,720 |
673,000 |
585,000 |
602,000 |
4月 |
445,702 |
463,492 |
451,000 |
372,000 |
451,000 |
5月 |
307,604 |
287,548 |
279,000 |
260,000 |
233,000 |
6月 |
184,388 |
189,143 |
191,000 |
168,000 |
165,000 |
7月 |
146,989 |
147,607 |
145,000 |
136,000 |
138,000 |
8月 |
130,270 |
133,244 |
129,000 |
123,000 |
123,000 |
9月 |
135,489 |
137,611 |
135,000 |
133,000 |
136,000 |
10月 |
209,515 |
215,151 |
214,000 |
232,000 |
204,000 |
11月 |
376,411 |
378,577 |
392,000 |
364,000 |
372,000 |
12月 |
631,636 |
593,825 |
646,000 |
601,000 |
557,000 |
| 单位：百万立方英尺 |
