Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	67379000000
1995-01-01	82419000000
1996-01-01	89685000000
1997-01-01	86895000000
1998-01-01	74444000000
1999-01-01	75551000000
2000-01-01	105033000000
2001-01-01	101884000000
2002-01-01	107301000000
2003-01-01	135929000000
2004-01-01	183207000000
2005-01-01	243798000000
2006-01-01	303550000000
2007-01-01	354401000000
2008-01-01	471603000000
2009-01-01	303388000000
2010-01-01	400630000000
2011-01-01	522011000000