YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	4932	4516	6660	7584	8679	10420	12149	12314	10091	7917	6592	5475	8134
1991	5052	6024	6890	7493	8672	10564	12594	13057	10478	8488	6741	6875	8596
1992	5965	6875	8082	8446	9711	11371	13149	13447	10880	9305	7487	6525	9306
1993	5889	6653	7680	8744	10154	12004	14035	14421	11912	10066	7897	7755	9789
1994	7045	7111	8459	9485	10940	12779	14551	14213	12032	10028	7798	7684	10199
1995	7014	7625	8347	9392	10651		14277	14864	12008	10072	8229	8121
1996	6747	7541	8609	9488	11164	13026	15050	14976	11927	10252	7578	6781	10262
1997	6518	7555	8280	9107	10854	12581	14769	15300	11972	10287	8872	8201	10358
1998	6953	8029	9052	10136	11484	13571	15418	15511	13066	11057	9223	8260	10980
1999	7472	7876	9005	10145	11072	14392	15763	15861	12407	11028	9551	8513	11090
2000	7366	8333	9566	9902	11343	13729	15894	15747	12407	10970	9078	8267	11050
2001	7679	7993	9331	9911	11889	13519	15570	16079	13159	11101	9608	8548	11199
2002	7632	8525	8969	10207	12050	14126	15971	16184	12877	11186	9463	8902	11341
2003	8026	8645	9188	10261	12067	14129	16180	17245	12867	11608	8607	8333	11430
2004	8209	9282	9961	11334	12195	14329	16572	16493	12138	11559	9675	8942	11724
2005	7498	8753	9794	10237	10860	12383	14117	14909	12739	10925	9609
2006	8724	8632	10366	10954	11734	13315	15649	15524	12588	11218	9111	9055	11406
2007	7702		9788	10678	11948	13629	16051	15706	12864	11403	9795	8677
2008	7491	8027	9399

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