YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
1990,4720,5100,5338,5473,5549,5444,5492,5631,5580,5584,5122,4691,5311
1991,4374,5002,5250,5506,5540,5563,5387,5840,5790,5807,5172,4909,5346
1992,4942,5236,5156,5090,5125,5372,5760,5955,6112,6022,5400,5353,5476
1993,4908,5383,5636,6157,6237,6312,6182,6700,6651,6490,5906,5814,6034
1994,5530,5159,5527,6038,6116,6189,6061,6569,6569,6438,5859,5768,5990
1995,,,,,,,, 
1996,,,,,6926,7061,6854,7335,7545,7132,6773,6265
1997,6126,6731,7056,7369,7537,7644,7384,7624,8276,7261,7139,6870,7251, 
1998,6405,6948,7303,7612,7568,7522,7385,7800,7782,7605,7233,6977,7345
1999,6862,7022,7605,7841,7773,7702,7531,7900,8033,7640,7320,7086,7526
2000,6867,7306,7675,7957,8137,7890,7576,8111,8077,7730,7433,7308,7672
2001,6875,7330,7800,8020,7941,7970,7848,8377,8373,8056,7770,7517,7823
2002,7401,7699,7801,8292,8494,8218,8140,8558,8480,8329,7806,7478,8058
2003,7405,7733,7811,8164,8336,8202,8056,8263,8369,8166,7246,7399,7929
2004,6868,7525,8132,8260,8104,7876,7311,7978,8406,8036,7664,7590,7813
2005,7193,7797,8096,8247,8250,8329,8147,8475,8429,8211,7894,7607,8056
2006,7660,8205,8567,8735,8993,8998,8580,9027,9071,8976,8625,8115,8629
2007,7922,8309,8808,8838,8970,8958,8502,8928,8693,8604,8122,7667,8527
2008,7168,7722,8029,8395,9014,8208,7760,7839,8126,7989,7401,7172,7902
2009,6972,7461,7602,7993,7367,7627,7754,7847,8099