YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	8422	9065	10657	11267	12007	13384	13582	14216	12563	11429	10727	8880	11362
1991	8421	9707	11273	11332	12181	13626	13990	14854	13072	12215	10918	10604	11863
1992	9655	10761	12285	12590	13483	14850	15520	15132	13901	12932	11613	10251	12788
1993	8869	10127	11996	13293	13853	15180	15968	16157	14814	13855	12560	11838	13226
1994	10304	11019	12938	13229	13877	15249	15637	15810	14628	13506	11912	11703	13332
1995	11098	11803	13431	13742	14505	15812	16231	16618	15369	14439	13477	12245	14064
1996	10810	11858	14039	14386	14974	16104	16561	16646	15227	14362	13585	12206	14230
1997	11836	12623	14519	14334	14972	15961	16337	16531	14828	14740	14031	13312	14502
1998	11823	13428	14812	15475	15927	17283	17689	18525	16724	15582	14854	13864	15499
1999	13230	13997	16276	16736	17420	19073	19356	19355	18271	17565	16660	14879	16902
2000	13597	15316	16762	16968	17660	18956	19204	19877	18261	17374	15983	14866	17069
2001	13502	14757	17161	17583	18244	19377	19668	20245	18830	17614	16452	14685	17343
2002	14105	15801	17370	18043	18808	20332	20539	20692	18845	18503	17112	16126	18023
2003	14970	15535	17362	17942	19076	20487	20716	21096	18393	17618	16593	15925	17976
2004	13414	15308	17812	18253	18448	19476	20148	20094	18829	18179	16942	16139	17754
2005	14350	16091	18012	18115	18463	20122	20432	20370	18451	17803	17193	16008	17951
2006	14972	16354	18043	18520	19099	20932	20852	20973	19717	19101	18171	16719	18621
2007	15523	16857	19020	19404	19600	20311						15745
2008	13720	15467	18017	18215	19156	19512	19495	19301	18039	17961	17285	15374	17629
2009	14428	15929	17861	18537	19427	20798	21289	19101	17270

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