Year Sterling (millions) 1986-12-31 659 1987-12-31 559 1988-12-31 713 1989-12-31 714 1990-12-31 461 1991-12-31 336 1992-12-31 328 1993-12-31 414 1994-12-31 284 1995-12-31 193 1996-12-31 1471