Year	Percent
1990-01-01	0.166667
1991-01-01	2.500000
1992-01-01	4.000000
1993-01-01	4.750000
1994-01-01	4.000000
1995-01-01	4.000000
1996-01-01	4.000000
1997-01-01	4.000000
1998-01-01	13.187500
1999-01-01	14.208300
2000-01-01	11.875000