YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,2849,2869,3440,3821,4124,4472,5067,5070,4509,3903,3530,3018,3896
1991,2881,3388,3522,3996,4375,4641,5213,5216,4590,4368,3786,3562,4133
1992,3422,3720,4198,4474,5011,5166,5564,5598,4997,4589,3941,3384,4520
1993,3221,3674,3997,4511,5195,5429,5779,6048,5667,5286,4196,4040,4760
1994,4016,4073,4674,5212,5667,5921,6326,6300,5979,5469,4521,4320,5214
1995,4524,4690,4948,5475,6126,,6808,6736,6429,5650,5067,4755
1996,4182,4574,4930,5521,5783,6356,6777,6617,5962,5544,4682,4217,5429
1997,4418,4768,4861,5352,5992,6617,7176,7191,6466,6005,5467,4903,5768
1998,4613,5096,5597,6027,6426,6659,7212,7049,,5854,5422,4954
1999,4869,5186,5613,6107,6458,6709,6783,7339,6799,6466,5849,5441,6135
2000,4915,5443,5864,6405,7000,7422,7696,7740,6849,6451,5644,5197,6386
2001,5150,5384,5828,6065,6602,6849,7306,7487,6765,6382,5726,5077,6218
2002,5101,5367,5448,6170,6680,6766,7174,7464,6828,6585,5922,5611,6260
2003,5440,5874,5712,6002,6438,7124,8029,7588,7009,6768,5655,5557,6433
2004,5155,5719,6184,6701,6749,7393,8037,7828,7181,6774,6141,5812,6640
2005,5386,6080,6286,6523,7036,7484,8093,8156,7246,6900,6300,5762,6771
2006,5765,6026,6339,6627,7098,7493,7823,8007,7347,6962,6145,5815,6787
2007,5618,5948,6470,6793,7188,7649,8125,8514,7581,7243,6527,5745,6950
2008,5163,5742,6051,6520,7189,7335,7968