YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1995		401	414	444	455	497	494	474	530	647	498	361
1996	325	374	442	488	514	472	468	491	500	572	466	333	454
1997	338	402	462	466	503	485	444	420	463	499	531	390	450
1998	357	422	473	501	488	523	497	498	525	497	589	375	479
1999	375	395	484	520	540	508	482	491	509	525	583	434	487
2000	368	449	498	538	573	538	526	601	577	537	567	509	523
2001	428	458	517	513	567	536	533	533	559	571	541	384	512
2002	406	442	523	533	599	573	555	624	632	584	607	392	539
2003	401	440	505	483	576	626	528	570	655	605	545	430	530
2004	388	431	539	563	580	560	538	557	620	577	563	426	529
2005	495	450	502	492	571	589	521	530	551	525	534	424	515
2006	429	465	503	548	604	551	500	521	565	574	586	447	524
2007	441	415	527	519	550	559	538	564	582	533	593	441	522
2008	339	461	540

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