YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	7967	8685	9766	10180	10745	12249	12984	11919	11022	10297	9725	8008	10303
1991	8012	9241	10320	10733	10859	12280	13134	13424	11311	11133	9897	9872	10862
1992	9070	9957	10675	11598	11860	12900	13904	13870	12018	12048	10701	9702	11562
1993	8962	9796	10993	11887	12050	13472	14969	14857	12682	12412	10964	10474	11974
1994	10084	10509	11943	12225	13465	14269	15172	15471	13695	12562	11477	11574	12720
1995	10747	11535	12393	12687	13476	14937	16261	16167	14401	13494	12490	12155	13395
1996	10374	11767	13143	13054	13757	15457	16710	16707	14457	13530	12533	11600	13591
1997	11309	12510	13627	13557	14339	15730	17177	16981	14929	14162	13472	12108	14158
1998	11671	12985	13779	14694	14999	16773	17940	17867	15392	15330
1999	11915	13300	14689	14803	15620	17326	18709	18566	15966	15108	14366	13350	15310
2000	12449	13542	14546	14821	15501	16984	18508	18020	15478	15085	13587	13275	15150
2001	12439	13274	14690	14958	15050	16838	17800	17939	15776	15284	14448	13030	15127
2002	12389	13903	15050	15012	16347	17416	18511	18862	16044	15664	14428	14286	15659
2003	13304	13800	14611	15369	16332	17605	19146	19280	15938	15858	14770	12764	15731
2004	12364	12757	15064	15880	15864	17326	18969	18487	16401	15704	14718	13947	15623
2005	12323	14003	15302	15315	15912	17476	18976	18393	15688	15087	14142	13728	15529
2006	12890	13966	15225	15554	15967	17643	18811	18118	16531	15617	14849	14378	15796
2007	13242	14190	15760	15911	16453	17896	18856	18686	16737	15971	15350	13445	16041
2008	12718	13569	14990

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