Year Dollars 1992-01-01 9443278 1997-01-01 31147456 2002-01-01 10018552 2003-01-01 16418637 2004-01-01 19160469 2005-01-01 24285720 2006-01-01 30945314 2007-01-01 66172811 2008-01-01 113258851 2009-01-01 46564478 2010-01-01 68658830 2011-01-01 144699970 2012-01-01 102085239 2013-01-01 132127323 2014-01-01 92035739 2015-01-01 92735044 2016-01-01 89552756