YEAR Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual 24-hr Avg.
2005            36030
2006 37012 39200 39862 39668 38651 39000 37338 38543 37234 38041 35939 35315 37984
2007 34915 36978 38215 38870 39528 39059 38220 39822 36766 37531 35919 35151 37581
2008 33023 35676 36478 37737 38607 37795 37258