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
1997	338	402	462	466	503	485	444	420	463	499	531	390
1998	357	422	473	501	488	523	497	498	525	497	589	375
1999	375	395	484	520	540	508	482	491	509	525	583	434
2000	368	449	498	538	573	538	526	601	577	537	567	509
2001	428	458	517	513	567	536	533	533	559	571	541	384
2002	406	442	523	533	599	573	555	624	632	584	607	392
2003	401	440	505	483	576	626	528	570	655	605	545	430
2004	388	431	539	563	580	560	538	557	620	577	563	426
2005	495	450	502	492	571	589	521	530	551	525	534	424
2006	429	465	503	548	604	551	500	521	565	574	586	447
2007	441	415	527	519	550	559	538	564	582	533	593	441
2008	339	461	540	584	560	534	506	521	570	526	582	373
2009	388	431	497	571	652	604	558	546	587	580	527	442
2010	425	457	548	544	556	569	538	527	566	657	591	463
2011	435	428	475	539	549	582	541	603	592	628	526	502
2012	447	530	483	508	526	521	499	548	569	581	506	441
2013	431	433	528	518

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For a graph of June average daily traffic from year to year -- click here.