Year Dollars 1992-01-01 1545111 1997-01-01 4006060 2002-01-01 2099354 2005-01-01 11001733 2006-01-01 3736634 2007-01-01 4966698 2008-01-01 47908607 2009-01-01 20153977 2010-01-01 68316681 2012-01-01 21176337 2015-01-01 43317824 2016-01-01 6530246