YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	3470	3921	5893	6304	5479	7296	8166	6827	5769	4969	4284	3898	5532
1991	3547	5305	5829	6180	6926	8353	8103	7724	6456	6227	4831	4318	6153
1992	4327	4562	5241	5611	7343	7764	8145	7181	6003	6297	4890	4381	6002
1993	4256	4491	4710	5501	7704	7296	8224	7575	6396	6090	4750	4297	5952
1994	4589	4746	5407	6140	8599	8534	8714	7187	6109	6104	4560	4125	6246
1995		5073	5206	6163	7293	8019	9239	8414	6963	6430	5151	4732
1996	4678	5186	5636	6329	7027	8440	8862	7865	6470	6256	5364	4074	6349
1997	3240	3689	3806	4128	4780	4896	5475	5077	4293	3861	3458	3238	4162
1998	3142	3378	3693	4165	4352	5040	5621	5247	4341	3717	3261	3101	4088
1999	3177	3179	3625	4239	4396	5011	5513	5017	4478	3840	3409	3211	4091
2000	3300	3843	4286	4983	5237
2001

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