YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	11092	11836	12605	13409	18774	20520	14441	13957	13158	13146	12397	12397	13986
1991	11220	12341	12980	13797	13597	13982	14246	14033	13813	13729	12926	12381	13257
1992	11267	12394	20800	21535	21313	22067	22508	15474	15596	15176	14265	13803	17243
1993	12317	13769	14657	15584	15825	16368	15782	15697	15253	15249	14195	14446	14933
1994	13987	14243	15947	16219	16561	16833	15888	16140	16240	16381	14966	14395	15657
1995	14921	15800	16242	16907	17014	16945	16636	16830	17539	16425	15496	14662	16285
1996	14466	15523	16458	18016	16662	16709	16559	16738	17033	16971	16152	14674	16330
1997	14754	16168	16588	16870	17392	17744	17319	17388	17591	17678	17055	16466	16918
1998	15940	17320	18117	18735	18629	18738	18054	18351	18056	18394	17534	16064	17828
1999	15938					20239	19483	19516	19322	19720	18587	17803
2000	17800	18965	19620	20545	20269	20530	19620	19801	19729	19721	18561	18047	19434
2001	17517	18846	19759	21008	21937	21015
2002
2003
2004									20191	19516	18837	18484
2005	17396	19415	20113	20694	21377	21529	20124	20443	19676	19780	20977
2006	18623	20423	20465	23098	23103	24144	23872	23543	21797	20392	20560	17699	21477
2007	17619	19846	18857	20106	20517			19892	19259	19266	18341	16230
2008			16663	17823	17942	18218			16924	16653	15580	14972
2009	15044	16350	15930					15153	15726

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