Year	%
1990	55.12048
1993	52.5196
1994	53.47194
1997	53.16306
1998	45.46808
2000	43.72959
2001	41.51595
2003	39.21977
2004	40.96258
2005	39.08983
2006	38.08194
2007	41.66421
2008	41.72609
2009	60.35833
2010	44.78127
2011	64.24641
2012	46.25555
2014	62.59508
2015	37.09169
2017	66.73374
2018	48.78864
2019	47.95893
2020	52.40464
2021	9.187853