1962 v. 1 (1-4) 1963 v. 2 (1-3) 1964 v. 3 (1-2) 1965-72 v. 4-11 1973 v. 12 (1-3) 1974 v. 13 (1-2, 4) 1975 v. 14 (1-4) 1976 v. 15 (1-3) 1977-91 v. 16-30 (1-4) 1992 v. 31 (2-10) 1993 v. 32 (1-6, 8-10) 1994 v. 33 (1-10) 1995 v. 34 (1-10) 1997 v. 36 (3-11) 1998-1999 v. 37-38 2000 v. 39 (1-3, 5, 10-11) 2001 v. 40 (1-3, 6-8, 12) 2002 v. 41 (1-12) 2003 v. 42 (1-12) 2004 v. 43 (1, 2, 3) 2005 v. 44 (3-8, 9, 11, 12) 2006 v. 45 (1-12) 2007 v. 46 (1-3, 5-12) 2008 v. 47 (1-12) 2009 v. 48 (1-12) 2010 v. 49 (1-5, 7-12) 2011 v. 50 (1-6, 9-10) 2012 v. 51 (1-6) 2013 v. 52 (1, 2, 5) 2015 v. 54 (4, 6)