§ Ms. Harmanasked the Secretary of State for Energy what has been the percentage increase in cost to domestic consumers of coal for every year for the past 10 years.
§ Mr. Giles ShawThe table gives the percentage increase in the index of domestic coal prices between successive years since 1973:
Percentage 1973–74 11.5 1974–75 34.7 1975–76 23.7 1976–77 16.5 1977–78 11.4 1978–79 17.4 1979–80 27.7 1980–81 17.4 1981–82 7.5 1982–83 6.3