Year Dollars 1992-01-01 236537 1997-01-01 79667 2002-01-01 65175 2003-01-01 245108 2005-01-01 726871 2006-01-01 552896 2007-01-01 995340 2008-01-01 2176097 2009-01-01 1178561 2010-01-01 2261960 2011-01-01 871689 2012-01-01 772007 2013-01-01 454203 2014-01-01 412669 2015-01-01 410825 2016-01-01 436377