Year Dollars 1997-01-01 24233 2002-01-01 31314 2003-01-01 98700 2004-01-01 87478 2005-01-01 97199 2006-01-01 50612 2011-01-01 44364 2012-01-01 21210 2013-01-01 46743 2015-01-01 77950