YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	7648	8240	9440	10029	9875	10854	11935	11568	11101	9711	9050	7767	9775
1991	7588	8890	9584	10038	10242	10892	12260	12032	10890	9797	9111	9069	10040
1992	8657	9441	10093	11080	10786	12324	13344	13169	12286	11485	10049	9398	11043
1993	8267	9258	10719	11422	11289	12796	13349	13905	12844	11713	10651	9927	11356
1994	9718	10003	11481	11850	11849	13117	14320	14051	13182	11827	10820	10304	11888
1995	9990	10903	11281	12163	12229	13263	14692	14360	13824	12434	11517	11199	12321
1996	9335	10786	11939	12892	12313	13864	15207	14886	13576	12444	11452	10077	12398
1997	10236	11324	12300	12739	12841	14735	16199	16292	14971	14029	13084	12241	13416
1998	11447	12497	13439	14219	14111	16076	17235	17296	15732	14860	13483	12557	14413
1999	11943	12857	14383	14790	14624	15830	17331	17107	15717	14670	13576	12456	14607
2000	11813	12967	13911	14311	14562	15850	17453	17189	15604	14776	13200	12785	14535
2001	12165	12991	14168	14916	15050	16280	17501	17326	16533	15541	14661	13288	15035
2002	12758	14133	15267	15712	16422	17704	19390	19177	17872	17108	15900	15126	16381
2003	14635	15301	15975	17126	17780	18974	20207	20355	19144	18740	16383	15809	17536
2004	14756	15989	17764	18201	17967	19931	21686	20929	20052	18667	17559	16683	18349
2005	15118	17143	18035	18464	18710	20559	21664	21511	19193	18197	17411	16550	18546
2006	15791	17287	18334	18898	19139	20991	21953	21371	21036	19833	18585	17892	19259
2007	16984	18219	19854	19619	20449	21844	22748	21678	21701	20706	19159	17012	19998
2008	17661	16909	17881

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