Year	%
1990	97.57582
1992	94.22398
1996	93.96838
1997	93.78449
1999	92.99548
2000	90.01778
2001	92.166
2002	90.35592
2003	90.33994
2004	92.56118
2005	13.92299
2006	11.45146
2007	14.42159
2008	8.845916
2009	8.005064
2010	6.980305
2011	8.434346
2012	8.641136
2013	8.576307
2015	5.802677
2016	7.707811
2017	8.288774
2018	9.111423
2019	15.04858
2020	10.64343
2021	12.65665