Year	U.S. Dollars
2000-01-01	991000000
2001-01-01	1056800000
2002-01-01	1211900000
2003-01-01	1554700000
2004-01-01	2073200000
2005-01-01	2310700000
2006-01-01	2811300000
2007-01-01	3712300000
2008-01-01	5134700000
2009-01-01	4977100000
2010-01-01	5641700000
2011-01-01	6522600000
2012-01-01	7592500000
2013-01-01	8506100000
2014-01-01	9242500000
2015-01-01	7856800000
2016-01-01	6952900000
2017-01-01	7279000000
2018-01-01	7659300000
2019-01-01	8175600000