Year	%
1990	98.64436
1992	96.29731
1996	97.13991
1997	96.65074
1999	96.05852
2000	90.36034
2001	93.57384
2002	92.30682
2003	92.04787
2004	94.58649
2005	8.394403
2006	7.495179
2007	9.16398
2008	4.008047
2009	3.997512
2010	3.327279
2011	4.374465
2012	4.463346
2013	4.383742
2015	1.864644
2016	3.390533
2017	3.934796
2018	4.782547
2019	10.70196
2020	6.863814
2021	9.700548