Year	Percent
1992-01-01	4.1009500000000000
1993-01-01	5.4690600000000000
1994-01-01	1.5305799999999998
1995-01-01	0.9832989999999999
1996-01-01	1.0493800000000000
1997-01-01	1.7420099999999998
1998-01-01	2.8956800000000000
1999-01-01	2.8600900000000000
2000-01-01	4.1171600000000000
2001-01-01	5.2012900000000000
2002-01-01	5.0673699999999995
2003-01-01	5.7916000000000000
2004-01-01	7.4240100000000010
2005-01-01	7.9004100000000010
2006-01-01	8.8811700000000000
2007-01-01	10.8725000000000000
2008-01-01	13.9163000000000000
2009-01-01	17.8706000000000000
2010-01-01	16.6808000000000000
2011-01-01	16.1445000000000000
2012-01-01	18.1192000000000000
2013-01-01	21.9186000000000000
2014-01-01	27.5467000000000000
2015-01-01	35.6813000000000000
2016-01-01	31.3176000000000000