Year	%
2001	17.82214
2002	15.56677
2004	15.41776
2005	13.76323
2006	13.85681
2007	15.46573
2008	15.65534
2009	15.0598
2010	11.70165
2011	14.02491
2012	13.87411
2013	15.65855
2014	15.63109
2015	18.57999
2016	19.47977
2017	14.54692
2018	15.05086
2019	13.93071
2020	13.63516
2021	13.70189