Year	%
2008	1.23
2009	1.58
2010	0.83
2011	0.69
2012	0.6
2013	0.54
2014	0.51
2015	0.73
2016	0.854318088546397
2017	0.668925745235763
2018	0.546970804225276
2019	0.568032237016265
2020	0.902373530647949
2021	0.878169345365409