Год: Том (Номера) / Year: Volume (Numbers)
1998: 19(1,2,3,4,5,6)
1997: 18(1,2,3,4,5,6)
1996: 17(1,2,3,4,5,6)
1995: 16(1,2,3,4,5,6)
1994: 15(1,2,3,4,5,6)
1993: 14(1,2,3,4,5,6)
1992: 13(6)
1991: 12(6)