YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,248,284,354,424,453,594,679,625,575,483,375,243,445
1991,243,295,348,379,437,564,709,708,560,521,354,297,452
1992,258,318,421,410,467,589,746,688,573,583,388,326,483
1993,211,250,369,467,453,543,713,704,579,594,411,298,467
1994,288,298,410,497,526,650,845,777,713,638,421,325,534
1995,309,338,406,470,498,627,815,828,688,677,471,364,541
1996,306,364,453,496,492,596,806,793,651,629,427,350,530
1997,354,394,492,495,518,612,816,746,649,630,481,379,547
1998,336,358,449,505,519,636,855,832,682,593,459,343,547
1999,348,342,462,495,520,619,851,820,685,591,501,360,550
2000,320,382,461,474,526,613,829,709,617,583,447,342,525
2001,299,325,450,502,547,638,816,782,660,610,508,340,540
2002,288,361,488,593,529,671,802,777,588,547,420,349,534
2003,302,330,489,536,548,689,839,851,667,617,445,359,556
2004,301,360,515,555,535,648,823,749,657,599,457,357,546
2005,293,352,474,559,521,654,871,763,636,565,426,367,540
2006,325,363,459,560,502,621,800,743,630,584,448,370,534
2007,339,372,499,550,571,675,792,786,684,633,491,371,564
2008,324,324,450,,521,638,771