Year Dollars 1992-01-01 45321429 1997-01-01 24866322 2002-01-01 60066059 2003-01-01 103261472 2004-01-01 110377746 2005-01-01 313015187 2006-01-01 231680884 2007-01-01 377925441 2008-01-01 522813111 2009-01-01 531297946 2010-01-01 569534136 2011-01-01 514360313 2012-01-01 592677919 2013-01-01 1091401465 2014-01-01 864863413 2015-01-01 826121524 2016-01-01 620504934