Year	%
1996	97.41785
1997	52.03006
1998	47.56425
1999	51.03116
2000	44.62184
2001	43.41365
2002	41.11769
2003	38.18276
2007	39.71908
2010	33.25858
2011	26.93871
2012	37.37882
2015	34.01081
2016	19.52478
2021	35.02678