28x04: 5 August 1987
28x03: 6 July 1987
28x01: 2 February 1987
27x104: 29 December 1986
27x82: 8 October 1986
27x05: 15 January 1986
27x60: 30 July 1986
27x48: 18 June 1986
27x39: 14 May 1986
27x07: 22 January 1986
26x09: 21 October 1985
26x06: 22 July 1985
26x05: 3 July 1985
26x04: 1 July 1985
26x03: 17 April 1985