Year	%
1993	55.94909
2000	46.18156
2001	40.92527
2002	63.55705
2003	36.76681
2005	54.14248
2006	52.64
2008	42.19114
2009	37.12183
2010	38.09405
2011	33.1916
2012	39.98406
2013	42.70501
2014	42.52349
2015	41.60352
2016	43.86268
2018	53.74517
2019	49.39107
2020	49.39107
2021	49.68536