Year Dollars 1992-01-01 117657308 1997-01-01 228291325 2002-01-01 253752665 2003-01-01 247858310 2005-01-01 454831046 2006-01-01 604525946 2011-01-01 2297914100 2012-01-01 859812954 2013-01-01 989227891 2014-01-01 1409328285 2015-01-01 142612990 2016-01-01 298794047