Year	US Dollars, Monthly Level
1992-01-01	4356000000.00000
1993-01-01	-12216000000.00000
1994-01-01	5392000000.00000
1995-01-01	16695000000.00000
1996-01-01	12212000000.00000
1997-01-01	40420000000.00000
1998-01-01	43474000000.00000
1999-01-01	29231000000.00000
2000-01-01	24127000000.00000
2001-01-01	23096000000.00000
2002-01-01	30335000000.00000
2003-01-01	25379000000.00000
2004-01-01	32110000000.00000
2005-01-01	101990000000.00000
2006-01-01	177528000000.00000
2007-01-01	262685000000.00000
2008-01-01	298127000000.00000
2009-01-01	195688000000.00000
2010-01-01	181505000000.00000
2011-01-01	154898000000.00000
2012-01-01	231089712000.00000
2013-01-01	261361878000.00000
2014-01-01	380116923000.00000
2015-01-01	601656689000.00000
2016-01-01	547244968999.99994
2017-01-01	438024422000.00000