Year	kg of oil equivalent (constant 2011 PPP)
1990	156.560595756957
1991	156.539085978404
1992	155.359819070964
1993	155.911573091177
1994	153.942577551448
1995	152.889835775149
1996	152.860299077187
1997	148.943412849752
1998	145.721066266311
1999	143.647089307903
2000	141.064198171482
2001	139.250205596945
2002	138.239994144597
2003	136.75934803598
2004	134.976265841008
2005	131.569191044906
2006	127.904539891798
2007	125.30909768328
2008	123.683802058497
2009	122.557878743405
2010	123.499421990483
2011	118.522272176186
2012	116.560644099508
2013	115.21845304268
2014	112.612715025977
2015	109.246713969813