Year	Sterling (millions)
1975-12-31	9
1976-12-31	10
1977-12-31	14
1978-12-31	15
1979-12-31	14
1980-12-31	41
1981-12-31	131
1982-12-31	202
1983-12-31	251
1984-12-31	242
1985-12-31	271
1986-12-31	307