YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,242,274,323,382,649,962,1361,1252,860,485,308,226,613
1991,228,300,323,313,567,986,1340,1298,999,590,277,204,621
1992,258,301,342,399,689,1039,1386,1360,957,601,330,281,665
1993,244,321,369,413,726,1103,1491,1428,1050,657,351,303,708
1994,309,322,375,413,702,1088,1580,1368,1073,660,353,349,719
1995,280,357,376,385,658,1068,1485,1445,1120,599,293,416,707
1996,289,327,388,393,660,1052,1454,1426,1103,609,365,323,699
1997,314,374,421,392,612,906,1377,1366,1028,631,400,347,681
1998,296,367,400,432,683,946,1405,1438,1086,370,344,359,677
1999,313,,447,396,630,937,1271,1230,923,586,380,361
2000,338,365,387,416,639,952,1243,1154,940,598,367,349,646
2001,323,357,380,402,630,952,1232,1296,878,582,390,302,644
2002,
2003,,,,,,,,,,472,391,343
2004,319,378,388,406,601,872,1150,1048,922,587,397,386,621
2005,313,362,370,403,637,860,1179,1043,824,546,390,333,605
2006,315,400,386,402,584,842,1104,974,962,564,396,381,609
2007,315,436,402,409,612,748,1047,978,726,466,352,330,568
2008,288,314,,,528,710,881,886,835,575,383,346
2009,335,398,366,397,606,788,,970,887