Year Dollars 1997-01-01 424492 2002-01-01 311579 2003-01-01 656490 2004-01-01 465503 2005-01-01 894648 2006-01-01 1216740 2007-01-01 1227969 2008-01-01 935096 2009-01-01 820064 2010-01-01 1323321 2011-01-01 2053654 2012-01-01 3619026 2013-01-01 4362031 2014-01-01 3431957 2015-01-01 1380997 2016-01-01 2134460