YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	2556	2718	3142	3516	3564	3926	4162	4235	3798	3650	3154	2559	3419
1991	2554	2830	3411	3421	3685	3967	4300	4617	3852	3756	3140	2992	3549
1992	2856	3070	3670	3701	3643	3932	4588	4468	3992	3893	3346	2914	3685
1993	2634	2858	3451	3974	3870	4190	4788	4803	4336	4129	3469	3182	3813
1994	3040	3181	3795	4025	3971	4321	4798	4345	4087	3965	3460	3036	3839
1995	3030	3252	3698	4019	4023	4348	4967	5023	4491	4303	3695	3312	4013
1996	2842	2980	3769	4033	4008	4506	5004	4946	4316	4410	3785	3382	3998
1997	3244	3509	4118	4105	4075	5157	5233	5271	4542	4566	4026	3689	4295
1998	3329	3565	4042	4541	4500	4954	5398	5545	4639	4592	4101	3559	4397
1999	3378	3653	4265	4508	4595	4937	5533	5484	4858	4724	4341	3837	4509
2000	3557	3811	4328	4480	4302		5591	5581	4758	4712	4295	3781
2001	3568	3737	4341	4424	4485	5016	5596	5595	4850	4849	4529	3870	4572
2002	3575	3905	4402	4622	4729	5306	5784	5899	5053	5097	4460	4203	4753
2003	3864	3981	4446	4754	4962	5479	6038	6088	5248	5273	4621	4239	4916
2004	3708	3934	4617	5071	4905	5386	6030	5803	5252	5106	4572	4120	4875
2005	3587	4008	4703	4677	4785	5390	6058	5822	4967	4685	4463	4091	4770
2006	3853	4066	4665	4909	4881	5355	5798	5646	5044	4983	4578	4235	4834
2007	3880	4074	4794	4939	4936	5383	5860	5950	5203	5147	4785	4121	4923
2008	3696	3944	4697	4863	4927	5069	5523	5519	4866	4915	4533	3788	4695
2009	3654	3940	4497	5061	4988	5301	5934	5721	5327	5238	4772	4203	4886
2010	3852	4174	4877	5242	4969	5359	6026	5705	5413	5114	4608	4138	4956
2011	3820	3951	4555	5186	4894	5373	5466	5535	5130	5196	4667	4072	4820
2012	3909	3973	4654	5110	4768	5508	5843	5704		5005	4534

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