Year	U.S. Dollars
2000-01-01	9578000000
2001-01-01	10284000000
2002-01-01	11056000000
2003-01-01	13686000000
2004-01-01	15103000000
2005-01-01	17801000000
2006-01-01	20322000000
2007-01-01	21418000000
2008-01-01	24016000000
2009-01-01	23226500000
2010-01-01	24902000000
2011-01-01	31124000000
2012-01-01	29731000000
2013-01-01	31528000000
2014-01-01	30390000000
2015-01-01	29937000000
2016-01-01	27403000000
2017-01-01	27431000000
2018-01-01	29521700000
2019-01-01	33290400000