Year	%
1996	88.30083
1997	48.69432
1998	40.24254
1999	42.22395
2000	41.96856
2001	39.47161
2002	45.75932
2003	42.65149
2007	41.88482
2010	38.57208
2011	23.89796
2012	39.97215
2015	24.45167
2016	13.27561
2021	36.82235