Year	% (cumulative)
2005	19.6980400085449
2007	19.9033603668213
2008	20.2435092926025
2009	20.9372596740723
2010	20.8770408630371
2011	21.0798206329346
2012	21.5209197998047
2013	21.8577003479004
2014	29.6894092559814
2015	30.327730178833
2016	30.8868598937988
2017	31.2289505004883
2018	32.0998954772949
2019	32.4449081420898
2020	32.6179962158203
2021	32.9909515380859