Progressive Progressive 1986 Progressive 1986 Progressive 1988 Progressive 1988 Progressive 1988 Progressive 1988 Progressive 1988 Progressive 1988 Progressive 1989 Progressive 1989 Progressive 1989 Progressive 1990 Progressive 1991 Progressive 1991 Progressive 1991 Progressive 1991 Progressive 1991 Progressive 1991 Progressive 1992 Progressive 1993 Progressive 1993 Progressive 1993 Progressive 1995 Progressive 1996 Progressive 1997 Progressive 1997 Progressive 1998 Progressive 1999