Year Sterling (millions) 1986-12-31 20251 1987-12-31 17804 1988-12-31 18401 1989-12-31 20260 1990-12-31 19929 1991-12-31 18870 1992-12-31 21812 1993-12-31 21726 1994-12-31 18168 1995-12-31 18476 1996-12-31 21220