Year Dollars 1992-01-01 53107 1997-01-01 365764 2002-01-01 1379525 2003-01-01 210660 2004-01-01 163770 2006-01-01 308530 2007-01-01 698818 2010-01-01 5164903 2011-01-01 3940304 2012-01-01 2401947 2013-01-01 3011033 2014-01-01 1580385 2015-01-01 916661 2016-01-01 509848