YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1990	254	287	414	508	672	948	1108	1090	834	588	377	249
1991	240	323	432	488	700	972	1202	1172	884	681	389	308
1992	294	387	516	531	787	980	1164	1220	920	654	420	332
1993	299	394	458	534	784	1008	1212	1204	906	681	409	333
1994	317	342	493	545	820	1041	1314	1206	947	684	388	285
1995	300	355	444	540	835	1097	1269	1212	962	759	438
1996	217	227	421	582	768		1210	1182		742	364	286
1997	265	360	415	487	741	953	1228	1209	869	627	441	318
1998	275	385	457	527	739	1008	1209	1152	940	624	411	302
1999	303	343	464	564	760	994	1227	1161	924	623	445	333
2000	325	379	479	583	800	1175	1242	848	809	580	395	295
2001	309	342	451	531	863	1026	1168	1172	919	598	459	285
2002	290	356	409	531	803	1052	1183	1159	873	624	405	324
2003	307	359	404	534	756	982	1158	1080	871	669	431	464
2004	270	369	477	580	804	968	1091	1021	846	611	414	294
2005	295	399	419	489	713	901	1036	1000	753	571	364	252
2006	276	323	417	492	687	864	968	918	756	547	346	248
2007	230	288	420	478	667	847	982	925	758	536	368	233
2008	202	168	350	385	610	757	851	854	656	497	361	221
2009	195	291	384	613	845	1013	1084				485	256
2010	200	288	366	400	627	804	963		747	539	303	207
2011	199	265	340	408	598	754	934	931	826	500	314	227
2012	203	264	329	381	563	740	953	934	706	469	316	216
2013	192	243	324	376

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