Year Dollars 1997-01-01 12538931 2002-01-01 46760 2003-01-01 309443 2004-01-01 344482 2005-01-01 113355 2006-01-01 51314 2008-01-01 321455 2009-01-01 271942 2010-01-01 959429 2011-01-01 179683 2012-01-01 149065 2013-01-01 219775 2014-01-01 145217 2015-01-01 49811 2016-01-01 690862