Year Sterling (millions) 1986-12-31 46 1987-12-31 37 1988-12-31 43 1989-12-31 44 1990-12-31 55 1991-12-31 25 1992-12-31 24 1993-12-31 40 1994-12-31 72 1995-12-31 87 1996-12-31 84