Year	%
2011	3.75693478858307
2012	3.78697531989083
2013	3.9655306434989
2014	4.0080407149345
2015	4.19528483569965
2016	4.87908375643174
2017	5.66619233797732
2018	10.2547809247156
2019	15.1937984496124