Year	% of total reserves
1995	247.20161665940253
1996	216.26570277708552
1997	117.92146367673611
1998	109.5273482433707
1999	71.42802562048658
2000	24.093177551067644
2001	19.570324785207088
2002	16.4720631338574
2003	13.212948635400036
2004	23.972514890117978
2005	22.544702138292156
2006	18.253777405023804
2007	18.71683903204309
2008	17.599003060471478
2009	29.080403307770652
2010	55.6084013835702
2011	79.63150583432392
2012	48.294180335648434
2013	46.99733831069781
2014	39.79076191105592
2015	42.44448519456186
2016	34.82340010339814
2017	44.62119109264962
2018	35.31833770754641
2019	31.144803531821807
2020	28.052993877396982
2021	30.385494732375673
2022	44.08856532710548