YEAR,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec,Annual 24-hr Avg.
2005,,8656,8688,9315,9155,8884,8550,9368,9191,9611,8315,7550
2006,7790,8321,8774,8969,9105,8999,8657,9403,9043,9059,8000,7397,8626
2007,7282,8022,8475,8813,8944,8599,8566,9409,9075,9092,8186,7183,8471
2008,6959,7712,8022,8692,8851,8527,8637