Year	Percent
1989-01-01	3.0573599999999996
1990-01-01	7.7500899999999990
1991-01-01	3.9872000000000000
1992-01-01	3.9814100000000000
1993-01-01	22.3475000000000000
1994-01-01	22.2250000000000000
1995-01-01	44.5536000000000000
1996-01-01	5.8919900000000000
1997-01-01	10.4670000000000000
1998-01-01	9.9815399999999990
1999-01-01	17.4795000000000000
2000-01-01	9.2695300000000000
2001-01-01	10.1523000000000000
2002-01-01	6.5290200000000000
2003-01-01	6.0310800000000000
2004-01-01	8.5283500000000000
2005-01-01	15.8774000000000000
2006-01-01	35.1458000000000000
2007-01-01	40.9982000000000000
2008-01-01	29.8908000000000000
2009-01-01	46.5380000000000040
2010-01-01	8.8329100000000000
2011-01-01	6.1784000000000000
2012-01-01	6.4261400000000000
2013-01-01	5.9971900000000000
2014-01-01	5.7240699999999990
2015-01-01	6.3851600000000000
2016-01-01	6.1263100000000000
2017-01-01	6.7889000000000000