1991 1995 1997 1993
1993 1994 1999 1990
1996 1994 1992 1998
1999 1997 1996 1998
1992 1994 1999 1990
1995 1997 1999 1993
1993 1996 1999 1990
1993 1997 1995 1991
1994 1998 1996 1992