Year	Percent
2006	86.98631
2007	106.74042
2008	52.80618
2009	48.26235
2010	38.5022
2011	20.69885
2012	21.18387
2013	21.35571
2014	22.93841
2015	16.58918
2016	10.00908
2017	19.77579