YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,2877,3142,3462,3712,3826,3981,3986,4038,3670,3570,3334,2837,3538
1991,2763,3188,3378,3546,3852,3898,3967,4067,3834,3971,3600,3389,3624
1992,3293,3153,3281,3502,3668,3672,3776,3848,3861,3795,3453,3147,3548
1993,2939,3159,3432,3829,4002,3990,4067,4210,4088,4195,3751,3647,3779
1994,3360,3618,4048,4318,4491,4627,4495,4597,4499,4564,3954,3750,4197
1995,3677,3984,4209,4563,4626,4633,4684,4751,4663,4762,4297,4036,4407
1996,3804,4099,4375,4773,4750,4698,4975,5385,5306,5234,4702,3967,4672
1997,3913,4327,4556,4812,5067,5263,5329,5255,5093,5079,4744,4768,4851
1998,4778,5014,5347,5647,5730,6054,5592,5945,5795,5686,5282,4946,5485
1999,4946,4779,5306,5770,5638,5880,5960,5974,5668,5885,5409,5238,5538
2000,5011,5355,5552,5919,5958,6053,5987,5996,5744,5753,5396,5207,5661
2001,4843,5149,6078,6577,6281,6332,5966,6034,6019,6149,5673,5308,5867
2002,5139,5531,5842,6460,7684,6927,6671,6708,6590,6548,5959,5727,6316
2003,4718,4916,5763,6610,8721,7326,6881,6543,6343,6752,6170,6133,6406
2004,5387,5927,6822,7293,7052,7538,7566,7293,7400,7328,6811,6822,6937
2005,6445,7120,7825,8196,8375,9057,8707,9107,8730,8822,8121,7736,8187
2006,7750,8530,9044,9415,9759,10037,9321,9791,9183,9551,8919,8329,9136
2007,8287,8757,9495,10149,10266,10623,10106,10112,9621,9833,8982,8353,9549
2008,7746,8429,8734,9335,9360,9218,8815,8554,8631,8440,7765,7532,8547
2009,7272,7912,8029,8934,9132,9231,9256,9075,9028