年 |
2003 |
2004 |
2005 |
2006 |
2007 |
1月 |
1,522,318 |
1,751,044 |
1,993,943 |
2,371,047 |
2,382,895 |
2月 |
850,501 |
1,155,757 |
1,564,462 |
1,886,240 |
1,651,569 |
3月 |
730,055 |
1,058,411 |
1,284,370 |
1,691,737 |
1,603,002 |
4月 |
893,321 |
1,252,455 |
1,498,643 |
1,945,276 |
1,722,741 |
5月 |
1,297,563 |
1,623,759 |
1,875,151 |
2,309,943 |
2,181,239 |
6月 |
1,765,182 |
2,022,935 |
2,197,491 |
2,616,647 |
2,582,784 |
7月 |
2,125,887 |
2,394,569 |
2,450,169 |
2,779,211 |
2,896,255 |
8月 |
2,435,746 |
2,742,614 |
2,662,261 |
2,969,223 |
3,020,799 |
9月 |
2,845,276 |
3,056,550 |
2,931,698 |
3,323,178 |
3,315,434 |
10月 |
3,130,211 |
3,302,235 |
3,194,104 |
3,452,241 |
3,565,380 |
11月 |
3,037,956 |
3,244,547 |
3,189,160 |
3,406,652 |
3,442,033 |
12月 |
2,562,619 |
2,696,075 |
2,635,360 |
3,069,956 |
2,879,259 |
单位：百万立方英尺 |
