Year Dollars 1992-01-01 745428 1997-01-01 2525626 2002-01-01 2320647 2003-01-01 4931364 2004-01-01 2832428 2005-01-01 2127298 2006-01-01 2602906 2007-01-01 3390457 2008-01-01 3979667 2009-01-01 3455265 2010-01-01 1908313 2011-01-01 3056027 2012-01-01 3242677 2013-01-01 4573797 2014-01-01 3330424 2015-01-01 5031755 2016-01-01 5147012