Year Dollars 1992-01-01 439830 2002-01-01 3263489 2003-01-01 3118053 2004-01-01 2186441 2005-01-01 13142415 2006-01-01 12727517 2007-01-01 16728483 2008-01-01 14483714 2009-01-01 12646070 2010-01-01 20623910 2011-01-01 16204504 2012-01-01 27261651 2013-01-01 37691779 2014-01-01 21112459 2015-01-01 35092124 2016-01-01 26792632