YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1995,31940,34375,36425,38746,41205,42957,, ,41007,37745,34534,38928
1996,27373,35152,37203,39863,41863,45970,49210,50163,43067,40345,33632,33334,39765
1997,32455,36730,38574,40897,42003,46332,50839,51655,43994,41430,39055,38487,41871
1998,34346,38723,40976,43626,,,52742,49406,43173,40740,37983,37415
1999,34569,37188,39441,41619,42827,45583,48884,49559,44435,42239,38556,34001,41575
2000,32817,37578,40209,41496,41871,44921,51431,,,40980,39472,36034
2001,35536,37933,40040,39549,46161,47755,52457,54377,46747,44116,41425,39293,43782
2002,37457,41525,41944,46194,48684,52010,56353,56991,49446,47023,44163,45515,47275
2003,40091,43356,43001,46305,48925,53444,57632,57750,49953,48608,43492,45331,48157
2004,40016,44392,47105,50118,48645,54807,58539,57634,51809,49401,47042,47182,49724
2005,41505,46999,48765,50046,52360,56781,60274,60376,51338,50119,44082,45504,50679
2006,44968,47956,51101,52608,54447,58874,60167,61633,55385,53274,48334,48514,53105
2007,44114,46798,50771,53233,55622,59734,62999,61345,51912,50954,48469,45001,52579
2008,39385,44896,46835,47755,50387,51151,55078