Year	%
2007	18.75
2008	18.98
2009	18.68
2010	18.61
2011	17.06
2012	17.44
2013	17.23
2014	15.27
2015	18.67
2016	18.73
2017	20.85
2018	27.59
2019	103.17
2020	24.07
2021	23.84