Year Dollars 1997-01-01 859084 2002-01-01 170856 2003-01-01 447066 2004-01-01 223878 2005-01-01 462916 2006-01-01 513007 2007-01-01 1198831 2008-01-01 2362762 2009-01-01 1430569 2010-01-01 2442959 2011-01-01 1633237 2012-01-01 1157607 2013-01-01 1589578 2014-01-01 1406448 2015-01-01 2102522 2016-01-01 2223214