Year	US Dollars, Sum Over Component Sub-periods
1992-01-01	43887000000
1993-01-01	40268000000
1994-01-01	44728000000
1995-01-01	57664000000
1996-01-01	58031000000
1997-01-01	58707000000
1998-01-01	62723000000
1999-01-01	64465000000
2000-01-01	64684000000
2001-01-01	66917000000
2002-01-01	73540000000
2003-01-01	88001000000
2004-01-01	110077000000
2005-01-01	119634000000
2006-01-01	133682000000
2007-01-01	162528000000
2008-01-01	177652000000
2009-01-01	134622000000
2010-01-01	147679000000
2011-01-01	172995000000
2012-01-01	161623000000
2013-01-01	168800000000