Year	% of total reserves
1974	3.3568990855654337
1975	0
1976	0
1980	0
1981	12.736810185052125
1982	28.308325289156773
1983	15.345820115425127
1984	6.99851851835901
1985	3.138153458160879
1986	0
1987	0
1988	0.01874668881038571
1989	0.10508878762675439
1990	0
1991	0.009887515892375787
1992	0
1993	0.14901852967365695
1994	0
1995	0
1996	0.004121377203913559
1997	0.025797015364897494
1998	0
1999	0
2000	0
2001	0.007780488737978867
2002	0.015102809970235888
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0.00648089954463461
2010	0
2011	0
2012	0.00029060968759614375
2013	16.011716241956307
2014	32.92764849093635
2015	25.729444689801724
2016	29.957809540836706
2017	24.39670102534474
2018	10.010510149556117
2019	13.713858273004057
2020	13.666530683654216
2021	16.51713814136751
2022	22.200233846246604