Year	%
2008	34.5991729106961
2009	28.8194990037454
2010	33.8639515654577
2011	32.4555402384622
2012	45.0800158418597
2013	11.6346593720184
2014	11.2608745499325
2015	9.89325622703281
2016	7.74932763930901
2017	8.25494542625541
2018	8.05900717149571
2019	6.41309834562661
2020	5.89539260995003
2021	5.48365716205432