Year	%
2009	10.6906319405441
2010	12.3485670452567
2011	12.2325818193462
2012	12.5470058289226
2013	11.947401452715
2014	12.6129242970574
2015	12.9110548435677
2016	12.9804981634284
2017	13.4470320043955
2018	13.1115288428394
2019	4.48670176070464