Year	%
1996	19.24
1999	14.74
2000	14.99
2001	14.5
2002	14.6
2003	14.09
2006	4.1
2007	14.09
2008	5.3
2009	14.23
2010	5.1
2011	6.47
2012	7.34
2013	7.1
2015	5.45
2016	5.41
2017	5.55
2018	5.33
2019	15.78
2020	10.44
2021	10.42