Year	kg of oil equivalent (constant 2011 PPP)
1990	464.125041787701
1991	507.37795783399
1992	488.838652038624
1993	505.070662607732
1994	558.412087545494
1995	628.048343337239
1996	639.31095257418
1997	630.63408423877
1998	607.90879178343
1999	606.277177743377
2000	567.127083983993
2001	520.502063103793
2002	500.0937186512
2003	487.080141809857
2004	432.094655323183
2005	416.688522004836
2006	372.788365380981
2007	351.56492939644
2008	332.032444813556
2009	331.353991237009
2010	368.968642743582
2011	334.335734192995
2012	322.879433542209
2013	306.168907961
2014	298.137759965316