Year	US Dollars, Monthly Level
1993-01-01	14430000000.000000
1994-01-01	16940000000.000002
1995-01-01	21250000000.000000
1996-01-01	19880000000.000000
1997-01-01	19200000000.000000
1998-01-01	20730000000.000000
1999-01-01	25470000000.000000
2000-01-01	30850000000.000000
2001-01-01	35640000000.000000
2002-01-01	38550000000.000000
2003-01-01	53120000000.000000
2004-01-01	69180000000.000000
2005-01-01	73520000000.000000
2006-01-01	90330000000.000000
2007-01-01	111040000000.000000
2008-01-01	132889999999.999980