Year US Dollars, Sum Over Component Sub-periods 1988-01-01 6881740000.000000 1989-01-01 2180530000.000000 1990-01-01 6343590000.000000 1991-01-01 2480970000.000000 1992-01-01 3210160000.000000 1993-01-01 3750180000.000000 1994-01-01 2241640000.000000 1995-01-01 4429910000.000000 1996-01-01 3495980000.000000 1997-01-01 3678630000.000000 1998-01-01 2581480000.000000 1999-01-01 6931870000.000000 2000-01-01 13387750000.000000 2001-01-01 14889430000.000000 2002-01-01 14586290000.000000 2003-01-01 16430869999.999998 2004-01-01 16825240000.000002 2005-01-01 19959750000.000000 2006-01-01 39259580000.000000 2007-01-01 40210250000.000000 2008-01-01 -10823380000.000000 2009-01-01 20079180000.000000 2010-01-01 9179600000.000000 2011-01-01 34333170000.000000 2012-01-01 92540000.000000 2013-01-01 16503439999.999998