Place
- Senegal20
- Sierra Nevada (Calif. and Nev.)20
- Zambia20
- Côte d'Ivoire19
- Salinas (Calif.)19
- San Luis Obispo County (Calif.)19
- Tuolumne County (Calif.)19
- Algeria18
- Mali18
- Mozambique18
- Pajaro (Calif.)18
- Saudi Arabia18
- Serbia18
- Togo18
- Africa, Southern17
- Bangladesh17
- Eureka (Calif.)17
- Los Angeles County (Calif.)17
- Orange County (Calif.)17
- Romania17