36 | 1999
(6 articles)35 | 1999
(4 articles)34 | 1998
(4 articles)33 | 1998
(8 articles)32 | 1997
(9 articles)31 | 1997
(5 articles)30 | 1995
(1 article)29 | 1994
(4 articles)28 | 1993
(6 articles)27 | 1993
(7 articles)26 | 1992
(10 articles)25 | 1992
(14 articles)24 | 1991
(7 articles)23 | 1991
(6 articles)22 | 1990
(8 articles)21 | 1990
(6 articles)20 | 1989
(5 articles)19 | 1989
(6 articles)17-18 | 1988
(11 articles)15-16 | 1987
(12 articles)