Year Dollars 1992-01-01 42607433 1997-01-01 21948087 2002-01-01 33403896 2003-01-01 33730711 2004-01-01 41006834 2005-01-01 39006599 2006-01-01 43234982 2007-01-01 47085587 2008-01-01 44014173 2009-01-01 38127677 2010-01-01 81961488 2011-01-01 61721093 2012-01-01 35284825 2013-01-01 32904794 2014-01-01 25446828 2015-01-01 27534612 2016-01-01 32402551