Date (applicable from)

Amount (spouse)

1 September 1971

8.50

2 November 1972

11.00

16 November 1974

15.00

1 September 1976

21.00

1 September 1979

23.60

1 September 1980

27.50

1 September 1981

29.85

1 May 1982

31.25

1 November 1982

33.90

1 May 1983

35.30

1 November 1983

37.00

1 May 1984

39.00

1 November 1984

41.80

1 May 1985

42.10

1 November 1985

43.20

1 May 1986

44.60

13 December 1986

46.00

13 June 1987

47.70

13 December 1987

48.60

13 June 1988

50.50