Год: Том (Номера) / Year: Volume (Numbers)
1999: 28(1,2,3,5,6,11)
1998: 27(4)
1996: 25(1)
1994: 23(8)
1993: 22(1,2,3,7A)
1991: 20(1,3,4,5,6,7,8,9,10,12)
1990: 19(1,2,3,4,5,6,7,8,9,10,11,12)