Date Span
14 May 1987
4
1989
4
1984
3
1985
3
30 May 1987
3
May 1988
3
1 Jun 1987
2
11 Jun 1984
2
11 Jun 1987
2
15 May 1989
2
18 May 1987
2
1983
2
7 Nov 1981
2
9 Jun 1987
2
May 1990
2
[1987]
2
n.d.
2
14 Mar 1987
1
2 Jun 1987
1
27 Feb 1987
1
29 Apr 1983
1
3 Jun 1987
1
4 Nov 1986
1
5 Jun 1985
1
8 Jun 1987
1
[1987]
1
[May 1989]
1
1 Jun-31 Aug 1988
1
1 Mar-30 Apr 1989
1
10 Jun 1987
1
11 Feb 1983
1
12 Apr 1987
1
12 Dec 1986
1
12 Jan 1987
1
12 Nov 1986
1
12 Sep 1986
1
13 Mar 1986
1
13 Mar 1987
1
13 May 1986
1
13 Oct 1987
1
13 Oct-15 Dec 1988
1
14 Dec 1984
1
14 Jun 1984
1
14 May 1990
1
14 Nov 1986
1
14 Oct 1985
1
14 Sep 1984
1
15 Apr 1985
1
15 Jan 1982
1
15 Jan 1987
1
more ...