Year	%
2007	17.12
2008	16.06
2009	16.24
2010	16.82
2011	16.19
2012	15.6
2013	13.9
2014	14.62
2015	16.54
2016	16.57
2017	17.08
2018	39.42
2019	129.47
2020	32.43
2021	32.33