Year	Tonnes of Oil Equivalent
1971	0.019
1972	0.0168
1973	0.01718
1974	0.01482
1975	0.01141
1976	0.01087
1977	0.01037
1978	0.00971
1979	0.01029
1980	0.00932
1981	0.00881
1982	0.00788
1983	0.00735
1984	0.00731
1985	0.00668
1986	0.00693
1987	0.00686
1988	0.00695
1989	0.00685
1990	0.00756
1991	0.00816
1992	0.00804
1993	0.00829
1994	0.00845
1995	0.00895
1996	0.00989
1997	0.01022
1998	0.00991
1999	0.00884
2000	0.00908
2001	0.00875
2002	0.00805
2003	0.00695
2004	0.00833
2005	0.00875
2006	0.00862
2007	0.00763
2008	0.00741
2009	0.00714
