年 |
1980 |
1981 |
1982 |
1983 |
1984 |
1月 |
21,000 |
37,000 |
24,000 |
24,000 |
54,000 |
2月 |
24,000 |
59,000 |
50,000 |
36,000 |
60,000 |
3月 |
59,000 |
55,000 |
88,000 |
59,000 |
48,000 |
4月 |
167,000 |
208,000 |
180,000 |
82,000 |
144,000 |
5月 |
298,000 |
255,000 |
382,000 |
191,000 |
254,000 |
6月 |
293,000 |
314,000 |
353,000 |
255,000 |
323,000 |
7月 |
286,000 |
335,000 |
351,000 |
268,000 |
346,000 |
8月 |
273,000 |
361,000 |
332,000 |
247,000 |
318,000 |
9月 |
240,000 |
287,000 |
277,000 |
258,000 |
289,000 |
10月 |
138,000 |
155,000 |
191,000 |
171,000 |
242,000 |
11月 |
65,000 |
80,000 |
83,000 |
80,000 |
83,000 |
12月 |
34,000 |
34,000 |
86,000 |
29,000 |
92,000 |
| 单位：百万立方英尺 |
