Year	%
2000	23.11
2001	22.895
2002	19.88
2003	23.767
2004	20.158
2005	21.946
2006	19.84
2007	18.39
2008	19.562
2010	21.673
2011	21.458
2012	15.504
2013	16.133
2014	16.455
2015	16.221
2016	20.588
2017	16.734
2018	17.825
2019	21.655
2020	22.565
2021	22.063
2022	21.071