YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	9239	9476	9603	9151	8785	8639	8101	9052	579	45	7486	7953	7335
1991	8329	8281	8155	8339	8005	7845	7264	8063	7790	9397	9200	9349	8336
1992	9472	9677	8796	8025	7701	7777	7510	7584	8817	9949	9394	9885	8737
1993	8990	9529	9834	9230	7836	8347	7703	7966	9365	10030	9692	9833	9024
1994	9729	10094	9805	9453	8501	8118	7724	8346	9777	10140	9959	10044	9301
1995	10143	10683	10655	10004	9598			7659	9459	10341	9905	9904
1996	9587	10296	10374	9547	7596					10013	10009	9420
1997	9645	10169	10168	10481	12526	12094					9962	10144
1998	9832	10878	10794	10992	10631	10293	9776	10440	10017	10455	9923	9668	10308
1999	9857	10379	10592	10542	10346	10200	9203	11296	10329	10389	9934	9745	10234
2000	9951	10321	10511	10479	10208	10120	9464	9832	9868	10147	9752	9880	10044
2001	9625	10180	10455	10330	10158	10113	9704	10137	10282	10372	10100	9208	10055
2002	9729	10102	10257	10228	10681	10281	10361	10010
2003
2004	10423		11548	11415	10694	11005	7938	5993	6007	11746	10152	9719
2005	9717	10251	10449	9794	9711	9855	9197	9699	9010	9326	9444	9541	9666
2006	9331	10035	10094	10151	10222	9613	8648			9012	9126	8863
2007	9603	9527	9584	9666	9556	9316	9048	9404	8866	9470	9304	8854	9350
2008		9488							9270	9351	8540	8594
2009	8529	9266	8881	9585	9015	8933	8828	8939	9112	9040	8624	8565	8943
2010	8385	9070	9137	9492	9025	9658	9024	9224	9340	9149	8782	8492	9065
2011	8691	9078	8988	9484	9226	9242	9033	9212	9002	9084	8417	8577	9003
2012	8730	8938	8735	9305	9041	8893	8576	8917	8884	8728	8698

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