Year Dollars 1997-01-01 130163 2002-01-01 965711 2003-01-01 1057492 2004-01-01 3597444 2005-01-01 781749 2006-01-01 1312740 2007-01-01 1903713 2008-01-01 917935 2009-01-01 3600389 2010-01-01 5138216 2011-01-01 2976171 2012-01-01 4098321 2013-01-01 4663537 2014-01-01 7357279 2015-01-01 8556718 2016-01-01 8706843