Year	% of total reserves
1995	252.71311655842595
1996	164.49582785355983
1997	88.81499313638886
1998	149.93333072001053
1999	274.4430254898927
2000	199.8422950191923
2001	142.28412960307435
2002	166.18605680159922
2003	60.40960666227582
2004	85.7724914953215
2005	53.94457410532883
2006	44.29038851603026
2007	48.755931454656285
2008	29.732427543635737
2009	24.67232248070097
2010	41.34130639742011
2011	49.22978836308921
2012	26.944284154388498
2013	19.019738814640306
2014	16.61327983037265
2015	10.358299537991703
2016	13.141761082167841
2017	10.945612688359278
2018	20.141152867346936
2019	37.252701399297194
2020	30.943959211146048
2021	28.50889148304373
2022	31.767126893142354