Year	% of total reserves
1970	5.382799270986725
1971	11.49571358780076
1972	5.199470002513007
1973	0
1974	0
1975	0
1976	0
1977	47.115506737517464
1978	15.1838877259959
1979	8.101476783482246
1980	21.46764765865486
1981	112.20347566272255
1982	181.61046459860606
1983	160.09675851534223
1984	132.32790158313102
1985	89.15704785615685
1986	91.71213917615894
1987	70.7109638275965
1988	88.22824742213987
1989	149.64546057838461
1990	200.12375654274686
1991	189.99178648528485
1992	174.55447872391355
1993	95.5930959565838
1994	84.87831576375032
1995	77.18865858624724
1996	96.02806205637422
1997	254.82727885276145
1998	248.25637132811215
1999	155.75301199158545
2000	177.26581427055083
2001	480.53431472639653
2002	443.97827383489556
2003	635.2091984451679
2004	452.7494769391449
2005	1146.9740443265973
2006	900.3668426348751
2007	1112.2880920209639
2008	2259.0348033755813
2009	200.29865770932344
2010	250.0092879928458
2011	313.7401866456202
2012	423.5605386327268
2013	578.509439380809
2014	725.3510977880152
2015	707.1328299820428
2016	771.5355247245253
2017	1273.5068924124105
2018	3893.411079971037
2019	2330.3653026392008
2020	11542.33067013719
2021	445.8391026956194
2022	665.5425458959633