Year	Tonnes of Oil Equivalent
1971	0.06612
1972	0.05294
1973	0.04971
1974	0.03392
1975	0.03195
1976	0.03973
1977	0.04033
1978	0.03721
1979	0.03752
1980	0.03152
1981	0.02
1982	0.01787
1983	0.01638
1984	0.01586
1985	0.01486
1986	0.01433
1987	0.01354
1988	0.0141
1989	0.01438
1990	0.01688
1991	0.01847
1992	0.01729
1993	0.01611
1994	0.01599
1995	0.01594
1996	0.01558
1997	0.01531
1998	0.01552
1999	0.0135
2000	0.01392
2001	0.01349
2002	0.01212
2003	0.01399
2004	0.01526
2005	0.01637
2006	0.01699
2007	0.01622
2008	0.01635
2009	0.01391