Year	% of total reserves
1993	51.86674603729695
1994	12.07607382254546
1995	0
1996	0.12021592956381533
1997	0.22113995567709124
1998	0.21924974598507416
1999	0.17761678002873174
2000	0.012593731966019017
2001	0.011302664957037216
2002	0.005402260973057531
2003	0.00405424522936719
2004	0.0028842396777467544
2005	0.0015702815396863524
2006	0.001156574166044048
2007	0
2008	3.0708504664620913
2009	7.000987415019573
2010	9.930345073679362
2011	12.22870873812522
2012	17.709611045280425
2013	19.2630640931484
2014	17.798998761849465
2015	17.893394015623215
2016	18.94895865027999
2017	14.574607585430243
2018	16.173160681741233
2019	18.179221488977344
2020	17.73197560336282
2021	21.89135695841811
2022	25.895166206407605