Year	%
1993	20.87
1998	21.67
1999	14.36
2000	14.41
2002	14.66
2003	14.87
2004	14.82
2005	14.72
2006	13.11
2007	13.05
2008	15.07
2009	12.77
2010	12.98
2011	13.15
2012	12.85
2013	11.82
2014	12.66
2015	12.63
2016	12.65
2018	12.79
2019	20.2
2020	12.1
2021	13.1