Year Sterling (millions) 1975-12-31 303 1976-12-31 403 1977-12-31 509 1978-12-31 333 1979-12-31 84 1980-12-31 613 1981-12-31 642 1982-12-31 1468 1983-12-31 2044 1984-12-31 2179 1985-12-31 2729 1986-12-31 3022 1987-12-31 3705 1988-12-31 4304 1989-12-31 4338 1990-12-31 5753 1991-12-31 5408 1992-12-31 4546 1993-12-31 5251 1994-12-31 4753 1995-12-31 4581 1996-12-31 9491