YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
2000,,,,,,4940,5649,5778,4567,3705,2869,2559
2001,3013,3109,3475,3150,3923,4774,5651,5670,4704,3851,3295,2658,3939
2002,2840,3159,3308,3287,4009,5096,6009,,,4127,3108,3039
2003,3137,3155,3171,3348,4103,5098,6102,5749,4938,4128,2848,2962,4062
2004,2931,3276,3621,3508,3977,5142,5854,5690,5090,3931,3349,3180,4129
2005,3012,3411,3560,3576,4152,5122,5883,5853,4885,3969,3149,3065,4136
2006,3066,3418,3558,3435,4181,5249,5957,5729,5045,4168,3339,3381,4211
2007,3462,3620,3950,3721,4492,5447,6318,6286,5341,4254,3634,3341,4489
2008,3205,3351,3679,3578,4296,5510,6385