Year Sterling (millions) 1975-12-31 120 1976-12-31 120 1977-12-31 135 1978-12-31 123 1979-12-31 98 1980-12-31 149 1981-12-31 181 1982-12-31 226 1983-12-31 205 1984-12-31 204 1985-12-31 321 1986-12-31 472