Year Dollars 1992-01-01 159579738 1997-01-01 31123200 2002-01-01 152693032 2003-01-01 168011037 2004-01-01 98008465 2005-01-01 54776706 2006-01-01 84410846 2007-01-01 131805936 2008-01-01 212641632 2009-01-01 155561475 2010-01-01 71483193 2011-01-01 91937136 2012-01-01 162705479 2013-01-01 88557214 2014-01-01 295066661 2015-01-01 48531736 2016-01-01 53852747