Year	U.S. Dollars
2000-01-01	908000000
2001-01-01	1679200000
2002-01-01	4337000000
2003-01-01	9529000000
2004-01-01	10564000000
2005-01-01	980000000
2006-01-01	10756000000
2007-01-01	14275000000
2008-01-01	8582000000
2009-01-01	9110000000
2010-01-01	12958000000
2011-01-01	14784000000
2012-01-01	10799300000
2013-01-01	6008400000
2014-01-01	9095700000
2015-01-01	13534000000
2016-01-01	18142700000
2017-01-01	16140500000
2018-01-01	12099300000
2019-01-01	10431800000