YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
1998										17446	16114	15068
1999	15258	16355	16149	15107	13530	12756	12445	14032	14267	14827	12784	12321	14153
2000	12000	13373	13190	14946	13333	12519	12281	13477	12362	14053	12251	11827	12968
2001	11365	13161	12700	14416	13695	12465	12216	13946	14485	14621	12848	12364	13190
2002	12136	13623	13018	15430	14287	12995	12805	14247	14993	15231	14123	13143	13836
2003	12913	14370	13371	15678	14555	13504	13415	14795	15476	15880	13204	13231	14199
2004	12459	14204	14053	16091	13978	13512	13132	15105	15628	16210	13823	13120	14276
2005	13137	14572	14127	15728	14035	13379	12752	15123	14792	15133	13484	12287	14046
2006	13171	14138	13858	15180	13819	12977	12006	14194	14200	14513	12784	11851	13558
2007	12358	13307	13472	14586	12953	13304		16876	16721	17112	15930	14079
2008	14299	16254	15918

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