YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
2001,,,,,26346,27558,26027,27203,25786,26286,25289,23234
2002,22473,25815,25319,28165,27747,27505,25318,26898,25407,26718,24516,25224,25925
2003,25494,25827,25125,26912,26172,27556,25839,25966,26301,26685,23413,23581,25739
2004,23120,24906,26279,26822,25099,25758,24722,25328,25643,25057,24147,24485,25114
2005,23262,25307,26104,26571,25142,26633,24946,26817,25351,25104,24269,23312,25235
2006,23776,25628,26313,25893,26148,26475,24481,27512,26056,26305,24631,22917,25511
2007,24009,25544,26099,26245,25878,25704,24780,26612,25211,26305,24293,22145,25235
2008,22601,24625,24079,25712,24761,24101,23503