Year	% of total reserves
1988	27.744975086206917
1989	0.024099928398238706
1990	1.9178980752421606
1991	0.4561806981000164
1992	0
1993	0
1994	0
1995	0
1996	0.05070496598529866
1997	0.07140453336181624
1998	0.1442307924352228
1999	0.17868534604542644
2000	1.5947269960279429
2001	1.275329303930958
2002	3.9750986025017316
2003	0
2004	1.0127546474283056
2005	17.428465010803123
2006	21.117868994789966
2007	22.98643934839374
2008	16.524594976656985
2009	19.9344470605664
2010	4.635444146586188
2011	4.7786669174210195
2012	4.573517955533295
2013	74.01438483518398
2014	66.75499974921945
2015	65.36246770222428
2016	78.81627618986239
2017	66.18244064578344
2018	41.185269506041756
2019	52.65159203766254
2020	51.97326148622064
2021	44.14674189091787
2022	47.609631151620285