Year	%
1995	32.14421
1996	45.19868
1997	13.47568
1998	2.718349
1999	35.86075
2000	1.908692
2001	1.507882
2002	1.285948
2003	1.163757
2004	2.827764
2005	3.966975
2006	3.898804
2007	3.210186
2008	4.222389
2009	22.79924
2010	22.5097
2011	3.263403
2012	2.781578
2013	23.01362
2014	21.88534
2015	22.59115
2016	21.04036
2017	24.07738
2018	1.905676
2019	2.477716
2020	2.759017
2021	2.278839