YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1995,4540,4808,5150,5382,5471,5212,5381,5297,5373,5336,4864,4680,5125
1996,4530,4873,5327,5523,5751,6107,5991,6426,6232,5907,5513,4927,5592
1997,4881,5495,6144,6334,6462,6474,6464,6255,5957,6367,5553,5294,5973
1998,4834,5542,5923,6153,6251,6406,6235,6140,6361,6472,6255,6104,6056
1999,5926,6134,6732,6796,6953,7143,7087,7198,6919,7008,6688,6214,6733
2000,6155,6589,6884,6892,7115,7179,6915,7248,6906,6803,6245,6086,6751
2001,5760,6198,6730,6952,6972,6868,6888,7266,6850,6909,6493,6039,6660
2002,5929,6463,6698,7069,7113,6978,7144,7582,7037,7301,6540,6104,6830
2003,6140,6463,6670,6951,7228,7330,7242,7384,7216,7236,6383,6565,6901
2004,5927,6570,7660,7831,7490,7600,7497,7608,7487,7288,6875,7096,7244
2005,6863,7714,8222,8454,8513,8706,8622,8818,8241,8256,7767,7019,8100
2006,7184,,8440,8967,9398,9498,8818,9269,8964,9054,8679,7526
2007,6930,7326,7718,7702,7832,7865,8933,9378,8670,8684,7498,6462,7917
2008,6418,7761,8460,8923,7724,7273,7204