1984a 1984b 1985a 1985b 1985c
1986a 1986b 1986c 1987a 1987b
1988a 1988b 1988c 1988d 1988e
1988f 1989a 1989b 1989c 1989d
1990a 1990b 1990c 1991a 1991b
1992 1993a 1993b 1995 2012