Year Dollars 1992-01-01 157453 2003-01-01 14766 2005-01-01 47620 2006-01-01 91139 2007-01-01 590317 2008-01-01 2371974 2009-01-01 635195 2010-01-01 263244 2011-01-01 215635 2012-01-01 159198 2013-01-01 192877 2014-01-01 124257 2015-01-01 442476 2016-01-01 504595