Year Sterling (millions) 1975-12-31 0 1976-12-31 0 1977-12-31 0 1978-12-31 0 1979-12-31 0 1980-12-31 1 1981-12-31 1 1982-12-31 1 1983-12-31 1 1984-12-31 1 1985-12-31 1 1986-12-31 1