Year	% of total reserves
1970	178.28079238444488
1971	120.29089210772356
1972	67.94575715038515
1973	50.32017041186878
1974	59.39665927091596
1975	100.03837865723526
1976	116.482525433494
1977	492.35892577378735
1978	440.82749740269065
1979	140.15224641934748
1980	75.84710872666456
1981	90.7443482027217
1982	63.1901936920122
1983	83.8299017438151
1984	130.40701326645473
1985	205.34663765159547
1986	217.99088470581472
1987	209.96152721913853
1988	164.0155296563041
1989	91.21657678059162
1990	124.57219590905785
1991	137.79810653113677
1992	168.62178096133158
1993	236.19873940090187
1994	131.00569449066262
1995	113.0308298676734
1996	97.3375306378269
1997	91.12711624686139
1998	103.15736615462643
1999	96.06811616983708
2000	122.95376774272735
2001	82.08893370786328
2002	65.89170343420867
2003	76.76833868905474
2004	98.39395410556018
2005	82.98671881305997
2006	78.00225067277793
2007	67.70800261198588
2008	76.51339146014338
2009	74.90681692634293
2010	108.19191418552599
2011	110.24043365758136
2012	96.19093388198893
2013	108.27942316409238
2014	111.92792936791452
2015	94.5211263569255
2016	85.92100273050126
2017	101.5563662561728
2018	99.09357726010457
2019	90.73967261851197
2020	119.07483177564646
2021	107.9387595272955
2022	119.77662139788623