Year	%
2007	18.76
2008	17.94
2009	17.96
2010	18.11
2011	17.11
2012	18.84
2013	18.16
2014	13.02
2015	21.84
2016	22.46
2017	23.36
2018	48.2
2019	312.08
2020	31.32
2021	30.58