Year	% (cumulative)
2005	12.8835783004761
2006	14.2723217010498
2007	15.7487516403198
2008	16.990234375
2009	18.6170597076416
2010	20.1196899414062
2011	22.1985206604004
2012	22.7405242919922
2015	26.0035800933838
2016	29.4548206329346
2017	26.8188705444336