MACK RB 1973 (1) (RSS) 1987 (1) (RSS) 1988 (1) (RSS) 1989 (3) (RSS) 1990 (1) (RSS) 1991 (1) (RSS) 1992 (3) (RSS) 1993 (3) (RSS) 1994 (2) (RSS) 1995 (1) (RSS) 1998 (2) (RSS) 1999 (2) (RSS) 2000 (3) (RSS) 2001 (3) (RSS) 2002 (2) (RSS) 2003 (1) (RSS) 2004 (2) (RSS) 2005 (1) (RSS)