Year	%
2002	26.75
2003	28.261
2004	17.511
2005	28.214
2006	27.471
2007	22.72
2008	32.103
2009	37.204
2010	27.426
2011	23.572
2012	25.768
2013	23.969
2014	24.017
2015	25.787
2016	29.331
2017	27.938
2018	26.236
2019	24.342
2020	29.129
2021	29.611
2022	23.422