Year	Percent
1997-01-01	19.9881
1998-01-01	19.9881
1999-01-01	19.9881
2000-01-01	19.9881
2001-01-01	19.9881
2002-01-01	19.9881
2003-01-01	19.9881
2004-01-01	19.9881
2005-01-01	19.9881
2006-01-01	19.9881
2007-01-01	19.9881
2008-01-01	20.1678