Year	%
2000	62.88416
2001	47.78574
2002	49.50495
2003	49.77912
2004	48.63233
2005	38.72386
2006	36.04669
2007	38.87399
2008	37.39582
2009	34.05103
2010	45.80153
2011	45.23084
2012	45.26825
2013	45.14943
2014	21.56107
2015	21.37925
2016	20.40995
2017	20.00744
2020	21.2069