Year Sterling (millions) 1975-12-31 16 1976-12-31 18 1977-12-31 3 1978-12-31 32 1979-12-31 41 1980-12-31 151 1981-12-31 189 1982-12-31 128 1983-12-31 150 1984-12-31 179 1985-12-31 171 1986-12-31 170