Year	%
1993	19.9
1997	18.61
1998	17.8
2000	13.14
2003	7.4
2005	8.08
2006	8.22
2007	7.48
2008	8.26
2009	10.62
2010	10.5
2011	8.42
2012	9.13
2013	7.87
2014	7.87
2015	7.36
2016	11.05
2018	18.6
2019	18.58
2020	22.76
2021	20.71