Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
1992,,,49815,50637,50065,54920,54035,50387,48334,47237,43065,41598,,
1993,36715,41150,46211,46495,43394,48166,52092,53086,51207,49794,44906,43559,46427,
1994,36717,42362,49782,48202,50721,52213,42540,44963,43615,42520,38346,37196,44096,
1995,,,,,,,,,,,,,,
1996,,,,,,,,,,,,,,
1997,,55763,58201,59423,62152,65749,63025,65448,63020,62792,60603,59633,,
1998,52630,60584,64201,65106,65600,71025,68976,69870,67553,67825,64643,60869,64907,
1999,60821,62226,66152,68505,68945,73682,70384,70838,67864,68962,63813,63638,67153,
2000,62094,66843,70634,72234,73797,77471,74514,77685,73319,72695,69640,68144,71589,
2001,64005,68891,73431,74475,75003,77925,75617,78020,73032,73434,70439,66801,72589,
2002,64299,67932,70173,73014,74547,76523,75307,76112,71425,73423,69385,67922,71672,
2003,66524,68670,69618,71549,72909,75915,74856,74450,72553,72899,67640,68876,71372,
2004,63175,68842,74590,75703,74604,78179,78754,79270,75700,76336,75968,73859,74582,
2005,67800,72628,76305,76466,76428,80884,78402,80869,75947,75595,73477,71370,75514,
2006,69634,73643,76881,76620,78445,82939,78334,,79265,77517,74948,71487,,
2007,70318,73671,76831,77277,78573,80164,78324,81254,75200,73732,72272,67311,75411,
2008,64135,69481,71972,73888,73806,,,74919,,,,,,
2009,63841,66263,67827,68777,70247,73355,67776,74928,,,,,,
2010,,,,,,,,,,,62934,62775,,
2011,61354,62690,64998,66579,68209,73934,68850,75679,73084,73296,68919,69017,68884,
2012,65601,69484,71503,74491,75820,78431,77219,78814,75759,76347,72744,69348,73797,
2013,63781,71428,75404,76827,78129,81718,79487,80890,78056,78349,73885,70810,75730,
2014,69016,71430,77186,79042,80314,82764,80466,80760,78196,77579,69614,71914,76523,
2015,70651,75466,77613,79163,80855,84760,83682,83458,81290,82702,77966,75568,79431,
2016,75718,81125,85398,88058,89687,93857,91180,92700,89595,90293,85437,77218,86689,
2017,71166,82566,88819,92093,93794,96429,94544,95887,93140,95003,89034,84886,89780,
2018,83132,86756,91735,95305,96861,100538,98285,99645,96188,96903,91973,85373,93558,
2019,84221,84956,93017,96564,96525,99877,98624,99902,97501,97842,91679,88912,94135,
2020,85390,91466,78596,59427,74498,85820,86276,89043,88565,89385,79902,77624,82166,
2021,77779,79455,89881,92720,94252,99659,99716,97714,93976,94547,91103,90910,91809,
2022,80879,88008,92309,94141,96254,98553,96158,98006,95387,96361,88945,83732,92395,
2023,84667,88323,90878,95857,98704,101102,96471,100971,97729,99569,93075,87609,94580,
2024,79441,91155,93421, , , , , , , , , , ,