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7-11
Efficiency of Energy Conversion
(%)
Year
Total Efficiency
Electricity Generation and
Coking
Petroleum Refining
Heating
by Power Stations
1983
69.93
36.94
91.18
99.16
1984
69.16
36.95
90.08
99.17
1985
68.29
36.85
90.79
99.10
1986
68.32
36.69
90.63
99.04
1987
67.48
36.75
90.46
98.81
1988
66.54
36.34
90.77
98.76
1989
66.51
36.74
90.30
98.57
1990
67.20
37.34
91.28
97.90
1991
65.90
37.60
89.90
98.10
1992
66.00
37.80
92.70
96.80
1993
67.32
39.90
98.05
98.49
1994
65.20
39.35
89.62
97.48
1995
71.05
37.31
91.99
97.67
1996
71.50
38.30
94.07
97.46
1997
69.23
35.89
92.08
97.37
1998
69.44
37.06
94.97
97.42
1999
69.19
37.04
96.21
97.51
2000
69.04
37.36
96.21
97.32
2001
69.03
37.63
96.50
97.92
2002
69.04
38.73
96.63
96.71
2003
69.40
38.83
96.13
96.80
2004
70.71
39.46
97.61
96.43
2005
71.08
39.92
97.61
96.86
