Year	Percent Change
1988-01-01	67.06886061757850
1989-01-01	97.97466047189850
1990-01-01	76.42074041450010
1991-01-01	92.59887311053880
1992-01-01	61.42220338588470
1993-01-01	44.72765199991070
1994-01-01	80.96852478928410
1995-01-01	48.27877975248070
1996-01-01	74.42061714144900
1997-01-01	87.97380242292320
1998-01-01	81.49357710665020
1999-01-01	94.49221082216210
2000-01-01	44.82796622407520
2001-01-01	43.50299249443000
2002-01-01	32.58215591153960
2003-01-01	11.39581669287980
2004-01-01	6.13615954510200
2005-01-01	7.13997342372011
2006-01-01	4.05323264083544