YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	31007	33582	35643	37875	36314	39142	38439	39840	37373	38552	37484	31891	36435
1991	32301	36137	36001	37372	36809	37321	40887	42789	40834	42514	43194	38502	38732
1992	38042	40092	40923	43897	39717	47615	47305	49441	47259	49207	38186	34002	43093
1993	32569	36268	38085	41638	42439	46580	46482	47541	45469	44364	42058	42479	42193
1994	38529	40216	47486	43108	44528	49533	44677	46626	44975	43486	42193	39871	43785
1995	39578	40765	44181	45297	46583	48529	45022	46484	45498	47353	43724	43203	44685
1996	41014	43386	47643	49172	50922	52121	50085	51106	47071	49052	47418	43493	47707
1997	44013	48009	50815	52253	54366	57158	56187	57878	54779	54109	52019	52096	52807
1998	48897	53098	55606	57011	57194	62103	59053	56182	57969	59140	56176	54028	56371
1999	51902	52627	56792	57913	60072	63818	62911	63739	60410	60956	57475	55441	58671
2000	51047	53318	57564	60333	62539	66180	64559	66539	62335	62595	58735	57722	60289
2001	54459	58825	62490	63511	64025	66291	64362	66500	62878	62313	58629	51156	61287
2002	53458	58211	60652	62490	64494	65867	63354	63160	59434	61856	57449	54622	60421
2003	54801	57126	56534	59729	61448	63436	63921	63467	60443	59083	55037	55955	59248
2004	51695	55690	60568	61628	61178	63196	64222	64348	61534	61591	58695	58520	60239
2005	54372	56783	60674	61649	62257	65839	64439	66021	60728	60870	58894	57016	60795
2006	55043	59191	61941	62306	64112	67852	65280	66561	61938	60123	58946	58014	61776
2007	56942	59700	62660	62940	64508	65717	64386	66192	59373
2008								60160	56370	55961	52258	48016
2009	47417	51753	53427	56102	57136	59406	58990		58274	59319	55500
2010
2011												55524
2012	52789	55948	57572	59972	61565	64117	62991	64283	61476	61934	58648

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