YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,31007,33582,35643,37875,36314,39142,38439,39840,37373,38552,37484,31891,36435
1991,32301,36137,36001,37372,36809,37321,40887,42789,40834,42514,43194,38502,38732
1992,38042,40092,40923,43897,39717,47615,47305,49441,47259,49207,38186,34002,43093
1993,32569,36268,38085,41638,42439,46580,46482,47541,45469,44364,42058,42479,42193
1994,38529,40216,47486,43108,44528,49533,44677,46626,44975,43486,42193,39871,43785
1995,39578,40765,44181,45297,46583,48529,45022,46484,45498,47353,43724,43203,44685
1996,41014,43386,47643,49172,50922,52121,50085,51106,47071,49052,47418,43493,47707
1997,44013,48009,50815,52253,54366,57158,56187,57878,54779,54109,52019,52096,52807
1998,48897,53098,55606,57011,57194,62103,59053,56182,57969,59140,56176,54028,56371
1999,51902,52627,56792,57913,60072,63818,62911,63739,60410,60956,57475,55441,58671
2000,51047,53318,57564,60333,62539,66180,64559,66539,62335,62595,58735,57722,60289
2001,54459,58825,62490,63511,64025,66291,64362,66500,62878,62313,58629,51156,61287
2002,53458,58211,60652,62490,64494,65867,63354,63160,59434,61856,57449,54622,60421
2003,54801,57126,56534,59729,61448,63436,63921,63467,60443,59083,55037,55955,59248
2004,51695,55690,60568,61628,61178,63196,64222,64348,61534,61591,58695,58520,60239
2005,54372,56783,60674,61649,62257,65839,64439,66021,60728,60870,58894,57016,60795
2006,55043,59191,61941,62306,64112,67852,65280,66561,61938,60123,58946,58014,61776
2007,56942,59700,62660,62940,64508,65717,64386,66192,59373
2008,