1990 - Madison, IN                    

1991 - Columbus, OH                

1992 - Colorado Springs, CO    

1993 - St. Louis, MO   

1994 - San Diego, CA               

1995 - Washington, D.C.      

1996 - Chicago, IL                     

1997 - Little Falls, MN               

1998 - San Diego, CA               

1999 - St. Louis, MO                 

2000 - Madison, IN                    

2001 - Seattle, WA                    

2002 - Little Falls, MN               

2003 -Oshkosh, WI                   

2004 - Cancun, MX                   

2005 - San Diego, CA               

2006 - Hartford, CT                    

2007 - St. Louis, MO