1999 | Jan/Feb | Mar/Apr | May/Jun | |||
1997 | Mar/Apr | May/Jun | Jul/Aug | Sept/Oct | Nov/Dec | |
1995 | Jan/Feb | |||||
1994 | Jan/Feb | |||||
1992 | Jul/Aug | Sept/Oct | Nov/Dec | |||
1984 | Sept | |||||
1974 | Jan |
1974 | March (2) | June | ||||
1977 | June | |||||
1978 | January | November | ||||
1980 | November | |||||
1981 | March | |||||
1983 | January | |||||
1984 | January (2) | March | ||||
1985 | January | March | June | September | ||
1986 | January | March | May | Sept/Oct | ||
1987 | Jan/Feb | Sept/Oct | Nov/Dec | |||
1988 | Jan/Feb | May/Jun | Jul/Aug (2) | Sept/Oct (2) | Nov/Dec (2) | |
1989 | Jan/Feb | May/Jun | ||||
1990 | Jul/Aug | Sept/Oct | ||||
1991 | Jul/Aug | |||||
1992 | Sep/Oct | |||||
1993 | Mar/Apr (2) | May/June (2) | Jul/Aug (2) | Sept/Oct | ||
1995 | Sept/Oct |