Year	%
1993	93.72356
1997	57.31269
2000	94.04303
2001	93.4327
2002	91.07496
2003	88.25231
2005	54.90886
2006	48.70607
2007	51.93999
2008	51.47034
2009	44.97852
2010	63.28339
2011	55.81288
2012	34.70251
2014	24.31651
2015	23.60596
2016	22.45532
2017	21.96158
2019	17.30485
2020	17.31772
2021	14.86683