Year	% of total reserves
1985	2.6172463167503066
1986	2.1795348256889344
1987	1.869758039622697
1988	1.933825757624242
1989	4.26539083226689
1990	29.45247928348579
1991	2.354250382870364
1992	2.6755635518384233
1993	1.5380090481083333
1994	2.8138401653290077
1995	4.5977027262684995
1996	4.311479556653268
1997	3.733667210728954
1998	2.392152809511967
1999	1.403538490578804
2000	1.5855744151234856
2001	2.2162723928844836
2002	3.063301917261508
2003	1.942655591688756
2004	1.3522291613681152
2005	0.25172752883329075
2006	0.31205770470639227
2007	0
2008	0
2009	6.0604430644930875E-06
2010	0.010695085269189416
2011	0.025187147720034345
2012	0.024231255487138986
2013	0.0024152374945124104
2014	0.0010330962730843824
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0