Year Sterling (millions) 1975-12-31 4 1976-12-31 5 1977-12-31 9 1978-12-31 13 1979-12-31 13 1980-12-31 11 1981-12-31 9 1982-12-31 9 1983-12-31 37 1984-12-31 53 1985-12-31 51 1986-12-31 61 1987-12-31 58 1988-12-31 51 1989-12-31 48 1990-12-31 49 1991-12-31 41 1992-12-31 29 1993-12-31 27 1994-12-31 35 1995-12-31 28 1996-12-31 12