1978
27 January
10 March
19 May
1 December
1979
10 August
7 September
21 September
5 October
2 November
16 November
1980
16 May
13 June
1981
6 February
1 May
26 June
21 August
11 December
1982
18 August
20 August
3 September
1 October
1983
7 January
1 April
2 September
25 November
1984
8 June
9 November
7 December
1985
15 March
7 June
6 December
1987
28 August
11 September
6 November
20 November
4 December
19 December
1988
25 March
6 May
20 May
17 June
23 September
