| 1980 | February | May | August | November |
| 1981 | February | May | August | November |
| 1982 | February | May | August | November |
| 1983 | February | May | September | November |
| 1984 | February | May | September | November |
| 1985 | February | May | September | November |
| 1986 | February | May | September | December |
| 1987 | February | May | September | November |
| 1988 | February | May | September | November |
| 1989 | February | May | September | November |
Newsletters from other decades: 1960s, 1970s, 1980s, 1990s, 2000s, 2010s, 2020s