Year Dollars 1992-01-01 4219547 1997-01-01 3533008 2005-01-01 24030970 2006-01-01 144861322 2007-01-01 165292498 2008-01-01 95452023 2009-01-01 134055640 2010-01-01 312915063 2012-01-01 457537459 2013-01-01 374337052 2014-01-01 95482030 2015-01-01 168868001 2016-01-01 34266883