Year	% (cumulative)
1991	7.57575988769531
2001	10.7495203018188
2006	10.241720199585
2007	10.7877416610718
2008	10.9465065002441
2009	11.8098726272583
2010	13.3802089691162
2011	21.1948795318604
2012	17.9613552093506
2013	18.530366897583
2014	20.2265396118164
2015	21.7800102233887
2016	23.1238193511963
2017	24.5490798950195
2018	26.082160949707
2019	27.3182792663574
2020	28.302526473999
2021	29.5774478912354
2022	30.8172245025635