YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,495,508,675,842,920,1204,1595,1720,1130,849,650,471,925
1991,463,572,705,876,1000,1221,1755,2214,1398,985,752,660,1054
1992,613,681,730,1055,1127,1314,2026,2559,1373,991,774,585,1158
1993,561,596,669,870,1016,1208,1823,1826,1258,984,714,617,1015
1994,616,607,752,873,950,1110,1613,1496,1181,918,705,584,953
1995,603,639,747,935,1000,1098,1531,1550,1220,962,784,618,974
1996,583,639,740,930,981,1112,1529,1576,1147,906,665,526,945
1997,578,634,683,886,1010,1167,1498,1528,1126,934,749,639,953
1998,588,693,819,956,1029,1119,1411,1400,1122,782,704,600,935
1999,627,,851,963,1016,1131,1524,1540,1217,974,802,681
2000,667,751,870,946,1025,1126,1503,1511,1179,960,779,675,999
2001,679,712,819,876,1039,1132,1487,1517,1049,835,766,598,959
2002,630,707,775,946,892,1061,1430,1472,1187,944,813,694,963
2003,681,735,775,876,922,1052,1387,1367,1063,925,755,667,934
2004,637,740,825,913,946,1099,1418,1350,1221,1054,818,684,975
2005,651,753,843,912,1036,1128,1432,1424,1084,912,843,700,977
2006,688,773,875,986,1119,1194,1531,1555,1225,1006,836,726,1043
2007,716,752,851,984,1107,1398,1674,1792,1318,1154,1027,766,1128
2008,707,772,911,938,1123,1141,1508