Year	2011 U.S. Dollars
1995-01-01	17107
1996-01-01	17910
1997-01-01	17777
1998-01-01	17750
1999-01-01	18070
2000-01-01	18845
2001-01-01	19521
2002-01-01	19986
2003-01-01	20737
2004-01-01	21709
2005-01-01	23113
2006-01-01	24658
2007-01-01	25930
2008-01-01	26460
2009-01-01	25069
2010-01-01	25692
2011-01-01	26169