Year	kg of oil equivalent (constant 2021 PPP)
1990	91.1218510317989
1991	90.61750171592746
1992	87.92459654421125
1993	88.09292446510683
1994	85.84443466938178
1995	86.68772460779343
1996	88.02539375497692
1997	85.59338681580525
1998	84.51807814203487
1999	82.06537105945556
2000	80.0261976652525
2001	80.36922866945902
2002	79.62136626783446
2003	80.69617442709585
2004	80.00291554346678
2005	78.84126217066112
2006	76.53882938230288
2007	73.0915998137181
2008	72.60418753247725
2009	71.8689646018397
2010	72.85794515497568
2011	68.78656359021866
2012	68.74743511159885
2013	68.34078615589202
2014	64.8855239276149
2015	64.57505209798816