Year	% of total reserves
1995	43.045869814411866
1996	33.191613945630145
1997	10.716709626320206
1998	21.215778279957327
1999	4.847610687609571
2000	37.72524220442232
2001	47.98309165842629
2002	16.388190419106838
2003	19.41100023084606
2004	27.4818932211004
2005	10.524321885379898
2006	46.80945084775792
2007	48.75684744883772
2008	70.0268017764757
2009	43.80996300674671
2010	48.62171979411457
2011	54.85000642368211
2012	75.14585123723164
2013	73.69544336238087
2014	79.67325413336083
2015	81.06306623114824
2016	85.41731804889288
2017	80.38081756201825
2018	70.46179379157545
2019	64.91371340306458
2020	59.34820522105153
2021	55.54159477583631
2022	77.94686119350895