Year	% (cumulative)
2009	11.2562503814697
2010	11.9844675064087
2011	12.6564998626709
2012	12.989990234375
2013	13.1004076004028
2014	13.2406301498413
2015	13.1702299118042
2018	13.695369720459
2019	13.4952802658081