Place
- France--Paris6
- Germany--Leipzig5
- Indiana--South Bend5
- Michigan--Detroit5
- Netherlands--Hague5
- Scotland--Glenrothes5
- Sweden--Stockholm5
- Switzerland--Zurich5
- Tennessee--Oak Ridge5
- Wisconsin--Hudson5
- Alabama--Sheffield4
- California4
- California--Palo Alto4
- Germany--Ludwigshafen am Rhein4
- Ontario--Toronto4
- Pennsylvania--Swarthmore4
- Togo4
- University of California, Berkeley4
- California Institute of Technology3
- California--Richmond3