Year	% (cumulative)
2009	11.3056402206421
2010	10.3646602630615
2011	10.7188739776611
2012	11.3788795471191
2013	10.858570098877
2014	11.5131196975708
2015	11.0902500152588
2018	11.48464012146
2019	10.9895696640015