Year	%
1996	50.10289
1999	39.92865
2000	39.85255
2001	41.72258
2002	45.4614
2003	44.81241
2005	43.73071
2006	34.85571
2007	37.89996
2010	41.43759
2011	40.77866
2012	32.67538
2013	35.95694
2014	38.85943
2015	35.32439
2016	36.47222
2019	27.19979
2020	30.34657