YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1995,,11857,12278,12849,13174,14447,15681,14154,14425,13257,12518,11844
1996,10863,12105,12738,13260,13098,14824,15840,14986,13989,12712,12029,11044,13124
1997,10763,11922,12796,13441,13732,14612,15467,15832,14703,13529,12331,11899,13419
1998,11426,12261,13157,13954,14277,15573,16805,16663,14346,14240,13080,12329,14009
1999,11751,12764,14061,14429,14754,16255,17627,17206,15936,14709,12908,12531,14578
2000,12232,13238,14163,14612,15098,15723,17269,16835,15377,14802,13172,12841,14614
2001,12112,13010,14118,15057,15392,16556,17555,17159,15985,14939,13987,12566,14870
2002,12462,13546,14503,15370,16139,17016,18463,18194,16862,16013,14669,13990,15602
2003,13622,13971,14685,15827,16416,17647,18970,18453,16309,15568,14248,13822,15795
2004,13003,14358,15945,16701,15881,17973,19391,18288,17433,16056,14881,14165,16173
2005,13081,14982,16291,16271,16521,18151,19005,19337,,,15278,14573
2006,14000,15245,16438,17060,17434,18595,19444,18994,18488,17286,16441,15649,17090
2007,15157,16364,17694,18218,18783,19967,20900,20611,19262,18172,17388,15251,18147
2008,15553,15387,16165,17561,17869,18512,19532