Boletín estadístico /

Jul-Dec 1984; Jan-Jun 1984; no.62-67 Julio-Dic.1985; Jan-Jun 1986; Jul-Dec 1988; no.116-121 Enero-Junio 19; no.127-129 Enero-Junio 19; no.130-135 Julio-Dic.1991; no.136-141 Enero-Junio 19; no.142-145 Julio-Dic.1992; no.146-151 Enero-Junio 19; no.152-157 1993 msg. sep-; no.158-163 enero-junio 19; no.164-168 1994 jul-dic.; no.170-175 1995 msg mayo; no.176-181 julio-dic. 199; no.182-187 1996 Enero-Jun; no.188-190 1996 Julio-Set; no.191-193 1996 Oct.-Dic.; no.194-199 1997 Enero-Jun; no.200-205 1997 Julio-Dic; no.211-216 1998 Jul-Dic.; no.217-221 1999 Jan.-June; no.222-227 1999 July-Dec.; no.228-233 2000 Jan-Jun; no.234-239 2000 July-Dec.; no.242,245,248,251 2001; no.254,256,258 2002