YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,4956,5120,5460,5651,5874,5832,5337,5553,5498,5472,5174,4950,5407
1991,4667,5061,5525,5905,6271,6158,5711,6360,7103,6503,5792,5750,5904
1992,5422,5657,6400,6827,7133,6790,6224,6595,6800,6608,6027,6139,6404
1993,5658,5859,6324,6752,7409,6988,6754,6801,7038,6794,6622,6792,6654
1994,6224,6437,6949,7504,7717,7618,7171,7346,7487,7418,7033,7111,7171
1995,6644,7135,7507,7780,8222,7887,7481,7734,7783,7599,7068,7520,7530
1996,6620,7225,7717,8129,8361,8327,7733,8006,8228,7813,7427,7349,7745
1997,6873,7412,7531,8254,8829,8538,7787,8369,8334,7960,7776,7822,7957
1998,7208,7673,7913,8502,8935,8798,8533,8721,8695,8728,8166,8372,8354
1999,7586,7948,8648,8828,9132,8909,8199,7915,, 
2000,,,,,,,,,,7504,6607,7268
2001,6810,7161,7716,8213,8698,8485,8046,8014,7797,7896,7822,7705,7864
2002,7241,7487,7607,8492,8912,,,,7047,7861,7905,8292
2003,8010,8175,8182,9195,9734,9573,8973,9219,9347,9513,8801,8994,8976
2004,8183,8361,8922,9850,9517,10402,8749,,9164,9417,9348,9632
2005,8710,9484,9892,10716,10973,10954,10680,10315,10504,10483,10201,10118,10253
2006,9568,10196,10363,11346,11832,11500,10934,11793,11416,11068,10812,10831,10972
2007,9998,10596,11059,10521,9501,10793,11083,11588,10722,11107,10737,10497,10684
2008,9815,10325,10535,11767,12044,11779,11669,,,,,10162
2009,10083,10441,9810,11803,12211,11543,11407,11551,11991,,10338,10202
2010,9694,10253,10938,11995,12650,12176,11817,11408,11256,11146,8958,10523,11068
2011,10400,11111,12384,13274,,14585,12235,11694,11438,11379