Year	%
1996	45.85914
1999	38.47934
2000	38.42604
2001	37.765
2002	39.36179
2003	39.28763
2006	33.05354
2007	42.32002
2008	42.57921
2010	37.84566
2011	45.54385
2012	34.43406
2013	43.39251
2015	41.31965
2016	41.93435
2019	26.63543