YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	242	274	323	382	649	962	1361	1252	860	485	308	226	613
1991	228	300	323	313	567	986	1340	1298	999	590	277	204	621
1992	258	301	342	399	689	1039	1386	1360	957	601	330	281	665
1993	244	321	369	413	726	1103	1491	1428	1050	657	351	303	708
1994	309	322	375	413	702	1088	1580	1368	1073	660	353	349	719
1995	280	357	376	385	658	1068	1485	1445	1120	599	293	416	707
1996	289	327	388	393	660	1052	1454	1426	1103	609	365	323	699
1997	314	374	421	392	612	906	1377	1366	1028	631	400	347	681
1998	296	367	400	432	683	946	1405	1438	1086	370	344	359	677
1999	313		447	396	630	937	1271	1230	923	586	380	361
2000	338	365	387	416	639	952	1243	1154	940	598	367	349	646
2001	323	357	380	402	630	952	1232	1296	878	582	390	302	644
2002
2003										472	391	343
2004	319	378	388	406	601	872	1150	1048	922	587	397	386	621
2005	313	362	370	403	637	860	1179	1043	824	546	390	333	605
2006	315	400	386	402	584	842	1104	974	962	564	396	381	609
2007	315	436	402	409	612	748	1047	978	726	466	352	330	568
2008	288	314			528	710	881	886	835	575	383	346
2009	335	398	366	397	606	788	1044	970	887	567	410	355	594
2010	332	389	400	393	588	848	1133	1042	910	604	380	355	615
2011	339	373		396	502	799	1032	978	869	597	388	386
2012	361	398	384	399	599	804	1021	986	841	578	385

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