YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,286,301,423,485,658,927,1010,959,826,650,384,256,599
1991,238,339,432,463,675,999,1285,1270,991,790,391,321,685
1992,309,387,485,530,780,990,1291,1345,1094,895,454,302,742
1993,277,340,476,507,780,1035,1338,1476,1124,814,446,360,751
1994,350,371,514,552,845,1044,1350,1489,1146,736,440,353,769
1995,340,390,471,548,817,,,1264,1034,797,480
1996,237,,468,569,724,984,,1335,867,726,401,310
1997,246,370,422,471,669,994,1263,1347,928,746,463,333,688
1998,302,421,479,538,752,1004,1249,985,995,674,428,324,679
1999,332,372,491,553,724,966,1236,1246,940,691,467,347,697
2000,336,404,503,567,777,1106,1307,989,853,680,435,314,689
2001,329,362,481,510,832,1120,1313,1222,985,649,473,316,716
2002,315,392,436,520,792,1078,1331,1232,972,743,454,368,719
2003,343,386,438,522,764,1068,1220,1253,1008,712,388,323,702
2004,286,396,497,581,803,1063,1165,1073,883,676,448,330,683
2005,304,411,454,499,749,958,1113,1032,816,603,385,276,633
2006,325,362,451,503,692,912,1014,937,825,632,367,277,608
2007,271,332,440,496,608,891,1023,1006,820,602,377,265,594
2008,232,201,392,389,611,793,893