Year	% of total reserves
1970	243.09560873584832
1971	293.232098365704
1972	227.46249007686532
1973	98.73242707272958
1974	84.33142748088467
1975	210.11881809124074
1976	268.1728578118547
1977	522.6904730210908
1978	322.3464231194102
1979	211.23804428975146
1980	162.40360952128998
1981	216.29763947658282
1982	280.14858760414853
1983	306.2920146836075
1984	389.16779888689894
1985	390.3727802219915
1986	400.27878298654656
1987	248.92589718491433
1988	303.91991403662195
1989	316.01277955967777
1990	122.93690268280703
1991	50.13138779429184
1992	21.66639704300343
1993	14.469300452117132
1994	13.409061721002919
1995	13.854686891683604
1996	12.832909349975917
1997	15.44895473753319
1998	22.639943486765603
1999	28.268595187603985
2000	29.77123274141852
2001	16.230644313276947
2002	15.274642562386928
2003	12.76965853754305
2004	11.206207980532962
2005	7.574641935726858
2006	6.612076550975658
2007	6.9399481242512
2008	8.279732781365208
2009	7.339850847266592
2010	8.504312835513659
2011	16.233963039250142
2012	42.47716449263056
2013	17.030779309489656
2014	22.247138965848304
2015	27.89722828038082
2016	50.52406954570585
2017	30.572433639508816
2018	24.716078162064733
2019	25.31852013914188
2020	30.684800759525466
2021	32.24714948515244
2022	94.09696871514306