Year	Percent
1987-01-01	2.5277600000000000
1988-01-01	4.0410900000000005
1989-01-01	5.7960500000000000
1990-01-01	9.3045500000000000
1991-01-01	13.9992000000000000
1992-01-01	15.8538000000000000
1993-01-01	20.9502000000000000
1994-01-01	26.0455000000000000
1995-01-01	29.3292000000000000
1996-01-01	34.6895000000000000
1997-01-01	37.6867000000000000
1998-01-01	42.4801000000000000
1999-01-01	46.0053000000000000
2000-01-01	44.8526000000000000
2001-01-01	45.2422000000000000
2002-01-01	64.3463000000000000
2003-01-01	72.6449000000000000
2004-01-01	83.9467000000000000
2005-01-01	82.8480000000000000
2006-01-01	92.5189999999999900
2007-01-01	105.4070000000000100
2008-01-01	50.8523000000000000
2009-01-01	62.6858000000000000
2010-01-01	65.9518000000000000
2011-01-01	63.8200000000000000
2012-01-01	63.7789000000000000
2013-01-01	68.5611000000000000
2014-01-01	57.5780000000000000
2015-01-01	60.8325000000000000
2016-01-01	62.4394000000000000