Year Dollars 1997-01-01 809035 2002-01-01 2727238 2003-01-01 9484899 2004-01-01 19792590 2005-01-01 17795231 2006-01-01 54673697 2007-01-01 68460810 2009-01-01 39110118 2015-01-01 43684314 2016-01-01 26994986