YEAR	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual 24-hr Avg.
2000								66938	64220	63674	60908	59974
2001	56380	61078	65587	66474	66525	68772	67762	70073	66318	66062	63381	59540	64829
2002	59591	64625	65979	67348	69351	69953	68436	70545	67860	69693	66781	65111	67106
2003	62153	67892		69157	69926	72732	71235	71911	70830	71086	66359	66817
2004	61028	66843	71899	71977	70085	73153	71743		74240	71771	69133	68306
2005	70598	71369	74839	73849	73766	77856	75732	78160	73624	73855	72343	69818	73817
2006	69209	74044	76830	74440	76369	79666	74393	79495	75727	76669	75285	72568	75391
2007	72000	76595	76358
2008
2009					77176	80577	82597	78094	76097

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