Year,Jan.,Feb.,Mar.,Apr.,May.,Jun.,Jul.,Aug.,Sep.,Oct.,Nov.,Dec.,24-Hour Annual Avg.,
2006,,,,,,,,5946,5924,5927,5440,4982,,
2007,4788,4911,5531,5653,5784,5687,5406,5809,5755,5576,5031,4594,5377,
2008,4411,4879,5218,5431,5557,5256,5164,5342,5282,5328,4722,,,
2009,4377,4594,4718,4889,4939,5257,5156,5349,5412,5079,4600,4363,4894,
2010,4205,4614,4998,5269,5239,5281,5190,5280,5475,5272,4754,4385,4997,
2011,4407,4678,4809,5200,5265,5369,5170,5435,5477,5312,4812,4487,5035,
2012,4485,4699,4856,5300,5187,5014,5106,5402,5388,5183,4792,4578,4999,
2013,4319,4740,5105,5406,5461,5192,5086,5312,5397,5397,4837,4463,5060,
2014,4318,4752,5217,5515,5622,5463,5322,5534,5566,5515,4951,4725,5208,
2015,4657,5142,5602,5851,5878,5864,5808,6034,6124,5741,5154,4792,5554,
2016,4749,5193,5580,6022,5998,5932,5874,6095,6158,6085,,5039,,
2017,4714,5327,5880,6060,6276,5828,5655,6126,5970,5978,5395,5205,5701,
2018,5152,5514,5961,6302,6699,6350,6281,6496,6645,6340,5752,5274,6064,
2019,5321,5432,6182,6619,6632,6666,5866,6561,6731,6657,6007,5579,6188,
2020,5409,5810,5777,5238,6011,6413,6464,6696,7090,6745,5821,5458,6078,
2021,5541,5832,6626,6998,7035,6959,7022,7184,7371,7034,6262,5654,6627,
2022,5605,6063,6571,6810,6875,6760,6589,6934,7082, , , , ,
2023, , , , , , , , , , , , , ,
2024, , , , , , , , , , , , , ,