Year	%
1995	33.94913
1997	35.64155
1998	33.62633
1999	8.758537
2000	6.860866
2001	5.889507
2002	5.338542
2003	5.315727
2004	3.631605
2005	4.823151
2006	5.206599
2007	3.517301
2008	20.84135
2009	25.49486
2010	21.36078
2011	25.24272
2012	3.041947
2013	25.79722
2014	23.07217
2015	22.48539
2020	1.787696
2021	1.617518