Month Sterling (millions) 1986-10-31 0 1986-11-30 0 1986-12-31 0 1987-01-31 0 1987-02-28 0 1987-03-31 0 1987-04-30 0 1987-05-31 0 1987-06-30 0 1987-07-31 0 1987-08-31 0 1987-09-30 0 1987-10-31 0 1987-11-30 0 1987-12-31 0