Year	%
1993	3.13
1994	7.57
1996	9.64
1997	11.12
2001	10.76
2002	10.79
2005	10.67
2007	9.03
2008	8.88
2009	9.04
2010	8.02
2011	9.53
2012	9.04
2013	8.34
2014	7.24
2015	4.77
2016	5.51
2017	5.07
2018	5.26
2019	17.8
2020	5.38
2021	5.99