Year	Percent
1993	1.44471
1994	1.9602
1995	2.77999
1996	3.27121
1997	1.49922
1998	2.6279
1999	3.38681
2000	2.02152
2001	0.26898
2002	1.87257
2003	1.01217
2004	1.47655
2005	6.25375
2006	1.27344
2007	1.4302
2009	2.26288
2010	2.58206
2011	1.63211
2012	2.44725
2014	2.41896
2016	2.48278