Year	Percent
1990-01-01	2.68282
1991-01-01	2.59956
1992-01-01	2.17009
1993-01-01	5.56880
1994-01-01	6.30243
1995-01-01	4.66073
1996-01-01	5.36384
1997-01-01	8.05687
1998-01-01	11.81240
1999-01-01	13.67950
2000-01-01	12.80530
2001-01-01	16.67410
2002-01-01	17.42940
2003-01-01	22.30240
2004-01-01	28.15350
2005-01-01	24.68570
2006-01-01	25.92670
2007-01-01	32.94370
2008-01-01	31.78220
2009-01-01	56.50160
2010-01-01	59.86950
2011-01-01	67.27640
2012-01-01	40.05370
2013-01-01	26.96330
2014-01-01	38.34880
2015-01-01	44.91220
2016-01-01	45.38830