Year	%
1993	22.1
1998	30.35
1999	16.41
2000	20.87
2002	18.59
2003	18.99
2004	18.38
2005	18.28
2006	14.34
2007	14.56
2008	150.92
2009	13.79
2010	14.25
2011	13.7
2012	13.78
2013	15.52
2014	13.12
2015	13.17
2016	12.4
2018	12.77
2019	14.74
2020	11.21
2021	12.22