Year	Tonnes of Oil Equivalent
1990	0.00159
1991	0.0016
1992	0.00152
1993	0.00142
1994	0.00148
1995	0.00151
1996	0.00146
1997	0.00152
1998	0.00154
1999	0.00145
2000	0.00156
2001	0.00159
2002	0.00168
2003	0.00164
2004	0.00173
2005	0.00175
2006	0.00171
2007	0.00172
2008	0.00182
2009	0.00175
2010	0.00175