Year	Percent
1989-01-01	2.3924600000000000
1990-01-01	2.1520700000000000
1991-01-01	2.1597700000000000
1992-01-01	2.3575000000000000
1993-01-01	2.9459700000000000
1994-01-01	3.1342500000000000
1995-01-01	3.0973000000000000
1996-01-01	3.3660699999999997
1997-01-01	3.5399199999999995
1998-01-01	3.5481300000000005
1999-01-01	3.4903500000000000
2000-01-01	3.7475699999999996
2001-01-01	4.3450400000000000
2002-01-01	5.0371200000000000
2003-01-01	6.2737300000000005
2004-01-01	6.3021300000000000
2005-01-01	6.3304400000000000
2006-01-01	8.6782100000000000
2007-01-01	8.9496100000000000
2008-01-01	8.0725300000000000
2009-01-01	9.4799100000000000
2010-01-01	11.7428000000000000
2011-01-01	15.9327000000000000
2012-01-01	15.1228000000000000
2013-01-01	13.9722000000000000
2014-01-01	15.1033000000000000
2015-01-01	16.7887000000000000
2016-01-01	16.6513000000000000