Annual (Financial) Sterling (millions) 1971-03-31 409 1972-03-31 1503 1973-03-31 376 1974-03-31 850 1975-03-31 2601 1976-03-31 2196 1977-03-31 2600 1978-03-31 2931 1979-03-31 2192 1980-03-31 2659 1981-03-31 3030 1982-03-31 3285 1983-03-31 3841 1984-03-31 6551 1985-03-31 4861 1986-03-31 3286 1987-03-31 2558 1988-03-31 3879 1989-03-31 -655 1990-03-31 -669 1991-03-31 148 1992-03-31 1502 1993-03-31 3531 1994-03-31 4033 1995-03-31 3005 1996-03-31 3886 1997-03-31 5352 1998-03-31 3048 1999-03-31 -7