Region
- Great Britain 11 Treffer
- New Zealand 8 Treffer
- United States 7 Treffer
- Australia 2 Treffer
- Europe 2 Treffer
- Antarctica 1 Treffer
- Auckland 1 Treffer
- Canterbury 1 Treffer
- China 1 Treffer
- Developing countries 1 Treffer
- England 1 Treffer
- European Economic Community countries 1 Treffer
- Gulf Coast (U.S.) 1 Treffer
- Huntly 1 Treffer
- Louisiana 1 Treffer
- Midlands 1 Treffer
- New Guinea 1 Treffer
- New Orleans 1 Treffer
- Tasmania 1 Treffer
- Wairakei 1 Treffer