Year	%
1993	22.1
1998	30.35
1999	16.41
2000	20.87
2002	18.59
2003	18.99
2004	18.38
2005	18.41
2006	14.5
2007	14.78
2008	150.92
2009	14.11
2010	14.62
2011	14.15
2012	14.31
2013	16.17
2014	14.11
2015	14.09
2016	13.18
2018	13.82
2019	15.99
2020	12.29
2021	13.13