Year	%
2000	21.38
2001	21.23
2002	21.26
2003	21.18
2004	21.14
2005	21.39
2006	21.4
2008	21.5
2009	21.57
2010	21.98
2011	22.11
2012	11.09
2013	10.98
2014	10.66
2015	11.58
2016	11.41
2017	11.14
2018	11.69
2019	13.25
2020	11.73
2021	10.43