Year Sterling (millions) 1975-12-31 241 1976-12-31 218 1977-12-31 367 1978-12-31 270 1979-12-31 296 1980-12-31 418 1981-12-31 373 1982-12-31 526 1983-12-31 440 1984-12-31 667 1985-12-31 585 1986-12-31 735