年 |
2008 |
2009 |
2010 |
2011 |
1月 |
2,055,881 |
2,133,233 |
2,303,858 |
2,307,675 |
2月 |
1,464,690 |
1,758,022 |
1,683,334 |
1,723,713 |
3月 |
1,266,066 |
1,659,646 |
1,652,413 |
1,580,565 |
4月 |
1,436,402 |
1,909,916 |
2,011,101 |
1,789,053 |
5月 |
1,839,543 |
2,374,809 |
2,419,660 |
2,187,590 |
6月 |
2,177,548 |
2,760,133 |
2,740,056 |
2,529,739 |
7月 |
2,517,023 |
3,090,305 |
2,965,780 |
2,774,278 |
8月 |
2,866,164 |
3,359,118 |
3,152,761 |
3,019,734 |
9月 |
3,160,918 |
3,645,978 |
3,507,646 |
3,415,906 |
10月 |
3,399,381 |
3,809,867 |
3,850,641 |
3,804,350 |
11月 |
3,345,911 |
3,837,424 |
3,768,905 |
3,842,769 |
12月 |
2,840,363 |
3,130,076 |
3,111,085 |
|
单位：百万立方英尺 |
