Year US Dollars, Sum Over Component Sub-periods 1988-01-01 127816900000.00000 1989-01-01 140554600000.00000 1990-01-01 169826200000.00000 1991-01-01 169052900000.00000 1992-01-01 178109400000.00000 1993-01-01 169385300000.00000 1994-01-01 193159500000.00000 1995-01-01 209942300000.00000 1996-01-01 248032500000.00000 1997-01-01 239117900000.00000 1998-01-01 241382100000.00000 1999-01-01 235965000000.00000 2000-01-01 240419300000.00000 2001-01-01 245009300000.00000 2002-01-01 252155100000.00000 2003-01-01 297797100000.00000 2004-01-01 352044200000.00000 2005-01-01 372102600000.00000 2006-01-01 417674400000.00000 2007-01-01 500433000000.00000 2008-01-01 540576800000.00006 2009-01-01 406133400000.00000 2010-01-01 447547700000.00000 2011-01-01 523618700000.00000 2012-01-01 502386700000.00000 2013-01-01 519875500000.00000