Year	%
2001	25.95609
2002	21.74146
2005	17.80199
2007	22.50193
2008	22.30476
2009	15.16615
2010	12.13108
2011	11.4397
2013	18.91935
2015	9.35638
2016	9.178266
2017	9.68945
2018	7.453541
2021	8.726526