MINNESOTA   1976 1976 TRAILER 1977   1977 TRAILER Undated 1978   1979 1980 1981   1981 TRAILER 1984 1985   1987 1988 1989   1990 SEQUENTIAL SEQUENTIAL 1990 c. 1990 TRAILER   c. 1990 TRAILER "NO-EXP" 1991 1992   1993 1995 c.1995 TRAILER   1996 1998 1998   2002 2003 2004   2005 2006 2007   2008