YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	14686	16758	17102	17620	17393	17572	16687	17061	18037	19218	18834	14850	17145
1991	15306	16962	17076	17993	17919	17585	17408	17655	17791	18242	16774	16595	17275
1992	16612	17791	18054	18673	17924	17968	17830	17840	19039	18886	17183	17512	17990
1993	16200	17197	18948	18767	18342	18997	18140	18262	18410	18364	17530	17162	18029
1994	16931	17585	19309	20327	18940	19272	18353	18366	18363	18364	17692	17091	18383
1995	17136	18324	18553	18954	18943	19774	18028
1996										18520	17134	16742
1997	16777	18097	18225	19204	19378	18972	18129	18423	18433	18500	17682	16787	18217
1998	16724	17821	18025	18659	18591	18775	17506	17588	18359	18618	17673	16966	17942
1999	16802	17735	18495	18623	18853	18819	18127	18197	18371	18765	17774	17388	18162
2000	17236	18087	18553	19041	18799	18917	17872	18378	18152	18383	17360
2001	16966	17827	18445	18649	18651	17993	17021	17188	18005	18015	17289	15869	17660
2002	16070							16603	15651	15828	16772	16289
2003	16662	16944	16484	17972	18037	17383	17171	17494	19950	18123	15898	16960	17423
2004	16035	15929	16170	16733	15974	16706	17552	18058	18815	18102	16935	16356	16947
2005	15495	16847	17593	18552	18272	18487	17092	18285	18711	17953	18161	18773	17852
2006	16606	16744		16306	16610	16808	15599	18979	19197	18163	17117	16036
2007	15441	16690	17500	18306	18809	17888	16554	18309	17664	17919	16474	15014	17214
2008	15097	16219		17361	17589	16838	16586		17347	17365	15622	17612
2009	15019	16065	16496	18124	18096	17915	17151	16856	17050

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