Year	%
1993	97.20009
1997	63.97734
2000	78.68144
2001	78.18362
2002	77.38529
2003	73.77349
2005	56.94496
2006	45.35766
2007	44.27048
2008	39.83805
2009	20.78138
2010	54.64531
2011	42.84988
2012	14.95537
2014	14.87622
2015	15.25017
2016	15.34974
2017	15.97387
2019	16.12841
2020	16.12841
2021	15.60641