YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,32888,34823,31391,34363,26378,35681,34029,35354,33192,34248,28814,27995,32404
1991,29739,32228,31975,33663,32584,31900,30790,30785,31057,31956,28560,28514,31135
1992,29108,23271,13339,13154,12838,18239,17692,17692,14698,14762,14007,14606,16983
1993,13916,14871,15240,15602,15092,16163,15128,15585,15940,16056,14983,15003,15298
1994,14520,15334,16110,15725,15451,16433,14554,14994,18142,17797,17371,14500,15905
1995,14279,14795,14930,15181,15065,15858,14588,14975,14555,14945,14376,14254,14817
1996,13931,14911,15421,15428,15430,16447,15020,15486,15027,14577,15449
1997,12539,13283,13769,13885,13724,14576,13114,13486,15578,15728,12694,12726,13759
1998,12454,13385,13536,13260,12711,13427,12048,12335,12076,11872,11175,11160,12453
1999,11057,11409,14887,15524,15208,15555,14061,14206,13831,13980,13230,13348,13858
2000,13485,14133,14162,14073,13875,14641,13568,13539,13450,13663,12922,13121,13719
2001,11530,12182,12334,12546,12362,12796,12200,12420,11561,11528,11255,10808,11960
2002,11002,11387,11283,11842,11626,11800,11369,11548,11121,11565,10954,10770,11356
2003,10707,10940,10720,11231,11056,11387,10682,10673,10844,10960,9940,10314,10788
2004,9995,10600,11085,11083,10712,10953,10953,10917,10756,10513,10257,10402,10686
2005,10061,10639,11000,11002,10815,,,13059,12611,12451,12087,12100
2006,12084,12710,12961,12744,13000,13333,12172,12743,12764,12763,12098,11735,12592
2007,12248,12650,12927,12785,12776,12781,12270,12785,12336,12825,12272,11753,12534
2008,11997,12562,12290,12654,12409,12235,11968