Year Sterling (millions) 1975-12-31 435 1976-12-31 427 1977-12-31 654 1978-12-31 622 1979-12-31 810 1980-12-31 1132 1981-12-31 1195 1982-12-31 1706 1983-12-31 1642 1984-12-31 1709 1985-12-31 1873 1986-12-31 2319