Year	Percent
2000	1.25387
2001	0.81248
2002	0.6185
2003	0.69526
2004	0.82628
2005	0.97554
2006	0.70104
2007	0.493
2008	0.37572
2009	0.54982
2010	0.87539
2011	1.08942
2012	2.08066
2013	3.18298
2014	3.45109
2015	3.13771
2016	2.6061
2017	2.05603
