Year	U.S. Dollars
2000-01-01	572700000
2001-01-01	560500000
2002-01-01	640100000
2003-01-01	824400000
2004-01-01	1023600000
2005-01-01	1053500000
2006-01-01	1484700000
2007-01-01	2022600000
2008-01-01	2770400000
2009-01-01	2332000000
2010-01-01	2432800000
2011-01-01	3127200000
2012-01-01	3833500000
2013-01-01	3891700000
2014-01-01	3383200000
2015-01-01	2472200000
2016-01-01	2448900000
2017-01-01	2781900000
2018-01-01	3073900000
2019-01-01	3488600000