Year Dollars 1997-01-01 708124 2002-01-01 377458 2003-01-01 678930 2004-01-01 1382820 2005-01-01 2021700 2006-01-01 4656824 2007-01-01 4826349 2008-01-01 6319853 2009-01-01 2846446 2010-01-01 3086752 2011-01-01 8430598 2012-01-01 2913236 2013-01-01 3303076 2014-01-01 4460794 2015-01-01 4343628 2016-01-01 5369649