Year	U.S. Dollars
2000-01-01	52600000
2001-01-01	53100000
2002-01-01	57600000
2003-01-01	77500000
2004-01-01	69200000
2005-01-01	63300000
2006-01-01	95400000
2007-01-01	110500000
2008-01-01	152400000
2009-01-01	176000000
2010-01-01	193100000
2011-01-01	186600000
2012-01-01	234200000
2013-01-01	410500000
2014-01-01	461400000
2015-01-01	377900000
2016-01-01	390600000
2017-01-01	430000000
2018-01-01	464400000
2019-01-01	501600000