Year	% (cumulative)
1970	4.27057981491089
1985	3.10928988456726
2002	5.70544004440308
2003	6.4542498588562
2004	5.55013990402222
2005	5.02845001220703
2006	4.94329023361206
2007	5.13126993179321
2008	5.11766004562378
2009	6.27428007125854
2010	6.89622020721436
2011	6.71436023712158
2012	7.14418983459473
2013	11.4430274963379
2014	7.57354021072388
2015	8.29306983947754
2016	11.9621315002441
2017	11.668270111084
2018	12.9438743591309
2019	19.9740390777588
2020	12.8459539413452
2021	15.5515203475952
2022	12.5689630508423