Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	11992130000
1995-01-01	13129180000
1996-01-01	13415100000
1997-01-01	14287400000
1998-01-01	14823900000
1999-01-01	15375980000
2000-01-01	15020090000
2001-01-01	15807000000
2002-01-01	17801640000
2003-01-01	20592510000
2004-01-01	24256270000
2005-01-01	29118800000
2006-01-01	31538880000
2007-01-01	40494300000
2008-01-01	46233420000
2009-01-01	36368420000
2010-01-01	44084200000
2011-01-01	46564990000
2012-01-01	47211820000
2013-01-01	49460050000