Year	Percent
1993	1.20856
1994	1.34406
1995	0.91763
1996	1.26097
1997	0.62814
1998	1.88452
1999	1.1649
2000	7.49829
2001	4.99164
2002	12.00685
2003	2.07397
2004	7.09438
2005	6.25971
2006	8.06899
2007	5.86243
2008	4.62688
2009	1.70785
2010	2.36585
2011	5.52715
2012	1.90202
2013	1.01932
2014	-0.35904
2015	1.7369
2016	3.95291
2017	6.18324