Year Dollars 1992-01-01 14327784 1997-01-01 27079369 2002-01-01 41027263 2003-01-01 42138063 2004-01-01 75384945 2005-01-01 106050375 2006-01-01 110559253 2007-01-01 125484453 2008-01-01 119631896 2009-01-01 108971834 2010-01-01 133081463 2011-01-01 167359208 2012-01-01 161597257 2013-01-01 147028599 2014-01-01 143056860 2015-01-01 178416523 2016-01-01 136781129