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Subject (Region)
- Pacific Area[remove]2,480
- Asia2,018
- East Asia333
- United States286
- Southeast Asia154
- Japan73
- China56
- Australia36
- Soviet Union29
- Russia (Federation)26
- Oceania21
- Developing countries12
- Pacific Ocean11
- South Asia11
- Canada10
- India10
- Latin America10
- North America9
- Pacific area9
- Philippines9