地區
- United States 21 results
- New Zealand 14 results
- Europe 5 results
- Australia 3 results
- Pacific Area 3 results
- Asia 2 results
- Canada 2 results
- Great Britain 2 results
- Developing countries 1 results
- Europe, Eastern 1 results
- European Economic Community countries 1 results
- Former Soviet republics 1 results
- France 1 results
- Germany 1 results
- Malaysia 1 results
- Micronesia (Federated States) 1 results
- OECD counties 1 results
- OECD countries 1 results
- Oceania 1 results
- Philippines 1 results