YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,3838,3798,4525,5078,5591,6162,7004,6938,6024,5250,4817,4004,5261
1991,3930,4530,4670,5297,6152,6433,7277,7499,6406,5773,5145,4782,5665
1992,4493,4939,5567,6154,6882,7349,7875,7864,6773,6294,5536,4882,6239
1993,4583,4988,5344,6065,7037,7562,7830,8413,7627,6966,6078,5724,6527
1994,5535,5621,6249,7264,7850,8119,9543,9536,8724,7178,6426,6131,7359
1995,6166,6507,6671,7561,8561,8736,9488,9407,8542,7331,6835,6742,7712
1996,,6174,6406,7222,7870,8490,9197,9095,8057,7393,6158,5874
1997,5729,6156,6199,7018,8077,8488,9422,9476,8470,7732,7121,6512,7533
1998,5924,6488,6956,7865,8505,8974,9720,9484,8595,7881,7445,6541,7865
1999,6316,6470,6906,7776,8499,8896,9403,9768,8968,8152,7486,6956,7966
2000,6370,6783,7105,7913,8717,9257,9983,9719,8653,8173,7157,6580,8034
2001,6479,6681,7176,7722,8842,9064,10092,10070,9048,8386,7547,6681,8149
2002,6611,7106,7045,8141,8995,9437,10285,10343,9326,8667,7946,7433,8445
2003,7050,7472,7545,8488,9368,9776,10858,9978,9096,8549,7512,7195,8574
2004,6803,7446,7884,8904,9156,9708,10611,10069,9552,8957,8275,7896,8772
2005,7231,8080,8294,8811,9610,9948,10460,10479,9360,9007,8522,7790,8966
2006,7680,8008,8169,8851,9791,10456,11250,10982,10152,9559,8460,8045,9284
2007,7559,8008,8620,9346,9667,10718,11576,11459,10412,9788,8864,7961,9498
2008,6813,7860,7953,8405,9698,9797,10715