YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1994,,,4129,4116,,4444,4202,4413,4310,1184,3217,4107
1995,4349,4528,4637,4835,4720,4893,4744,4868,4812,4859,4703,4416,4697
1996,4451,4714,4991,5216,5249,5395,5103,5321,5201,5092,5113,4733,5048
1997,4718,5128,5475,5584,5701,5871,5729,6021,6051,6110,5962,5932,5690
1998,5631,6117,6437,6764,6623,6798,6720,7018,6910,7084,6532,6856,6624
1999,6886,7249,7445,7278,7216,7946,7813,7585,7859,7888,7601,7638,7534
2000,7264,7746,7977,8286,8443,8632,8354,8659,8514,8640,7242,4625,7865
2001,4343,,,,,,,,8430,8934,7792,8662
2002,8582,9163,9444,10244,9031,9436,8703,9725,10020,10353,10053,9973,9561
2003,9890,10380,10373,10925,11191,11411,10873,11070,11236,11253,10683,10917,10850
2004,10450,11603,12400,12293,11680,11669,11591,11752,11869,11452,11169,11860,11649
2005,11317,12190,12287,12609,12692,11998,11963,12978,12995,13001,12779,12740,12462
2006,12562,13552,13878,14245,14455,10794,10561,13954,13920,14313,13576,13781,13299
2007,13152,13900,14191,14163,13682,13377,13206,14740,14020,14516,13733,13328,13834
2008,12323,13329,13558,14038,14170,13290,12882