Year	%
1996	53.19893
1997	48.24133
1998	53.19893
1999	53.19893
2000	68.71495
2001	51.98292
2002	47.56949
2003	48.44994
2004	47.99601
2005	51.67586
2006	46.66424
2007	40.45135
2008	43.79072
2010	42.60777
2011	51.63193
2012	51.13345
2013	51.49044
2015	41.19784
2016	37.69824
2017	36.42838
2018	36.17597
2020	35.50867
2021	31.64557
