Year	Tonnes of Oil Equivalent
1971	0.00834
1972	0.00888
1973	0.01005
1974	0.01087
1975	0.01208
1976	0.01198
1977	0.01289
1978	0.01306
1979	0.01221
1980	0.01219
1981	0.01114
1982	0.0109
1983	0.01005
1984	0.0107
1985	0.01093
1986	0.01058
1987	0.01006
1988	0.01035
1989	0.01021
1990	0.01038
1991	0.00999
1992	0.01001
1993	0.00931
1994	0.00979
1995	0.00965
1996	0.01017
1997	0.01008
1998	0.01083
1999	0.0125
2000	0.01547
2001	0.01591
2002	0.0184
2003	0.02373
2004	0.02521
2005	0.0277
2006	0.03239
2007	0.03256
2008	0.0321
2009	0.03293