Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	10259780000
1996-01-01	9861430000
1997-01-01	9776570000
1998-01-01	10856760000
1999-01-01	11146960000
2000-01-01	11011150000
2001-01-01	11518000000
2002-01-01	11572990000
2003-01-01	13931010000
2004-01-01	17054820000
2005-01-01	18798110000
2006-01-01	20769750000
2007-01-01	23166020000
2008-01-01	27923630000
2009-01-01	20015860000
2010-01-01	21955820000
2011-01-01	26814890000
2012-01-01	24718830000
2013-01-01	25596050000