YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	472	528	753	968	1027	1608	1694	1626	1217	1013	816	469
1991	508	693	818	910	1105	1489	1648	1673	1335	1040	667	608
1992	553	664	780	955	1151	1466	1753	1780	1424	1088	702	441
1993	309	424	704	815	1136	1471	1784	1657	1490	1099	761	580
1994	551	566	867	947	1126	1516	1852	1720	1417	1142	700	640
1995	536	659	771	905	1166	1558	1755	1586	1474	1166	876	672
1996	466	628	827	1018	1137	1488	1698	1710	1370	1104	777	508
1997	516	687	847	856	1117	1769	1795	1718	1351	1077	834	608
1998	533	632	812	912	1164	1560	1736		1458	1113	789	599
1999	612	570	839	830	1046	1439		1957	1468	1231	954	650
2000	551	707	867	1018	1220	1512	1770	1631	1359	1203	852	663
2001	599	637	869	986	1222	1506	1749	1650	1439	1223	968	603
2002	560	698	688			1617	1724	1717	1434	1222	952	757
2003	674	747	906	951	1214	1534	1802	1706	1403	1217	878	690
2004	525	664	903	1011	1190	1504	1729	1604	1466	1210	953	736
2005	532	747	895	986	1152	1432	1688	1523	1366	1118	887	669
2006	577	702	815	969	1076					879	749	570
2007	545	612	742	859	1129	1355	1495	1500	1330	1120	910	613
2008	473	532	764	807	1067	1286	1413	1380	1261	1047	859	538
2009	538	611	749	845	1092	1247	1407	1313	1325	1023	832	611
2010	522	652	803	878	1106	1462	1766	1661	1431	1207	769	564
2011	603	641	731	889	1087	1354	1694	1544	1407	1108	827	710
2012	621	669	797	927	1101	1344	1609	1569	1402	1129	870	656
2013	554	656	758	945

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