1977 Porterville, CA 1979 Columbia,CA 1980 Columbia,CA 1981 Cameron, CA 1981 Porterville, CA 1982 Columbia, CA 1983, 1984 Columbia, CA 1985 Columbia, CA 1986 Grass Valley, CA 1987 Quincy, CA 1988 Columbia, CA 1989 Porterville, CA 1989 Columbia, CA 1990 Porterville, CA 1990 Columbia, CA 1991 Columbia, CA 1991 Porterville,CA 1992 Columbia, CA

1993 Columbia, CA 1993 Porterville, CA 1994 Georgetown, CA 1994 Porterville, CA 1995 Porterville, CA 1995 Columbia, CA 1996 Porterville, CA 1996 Columbia, CA 1998 Porterville, CA 1998 Columbia, CA 1998 New Carlisle, OH 1999 Porterville, CA 1999 Columbia, CA May 2000, Porterville October 2000, Porterville May 2001, Porterville August 2001, Prosser, WA October 2001, Porterville

May 2002, Porterville August 2002, Porterville October 2002, Porterville October 2003, Porterville May 2004, Porterville October 2004, Porterville May 2005, Porterville October 2005, Porterville May 2006, Porterville October 2006, Porterville May 2007, Porterville September 2007, Porterville May 2008, Porterville September 2008, Porterville