Subject (Region)
- Europe, Eastern288
- Athens256
- Developing countries229
- Chile226
- Egypt219
- Athens (Greece)210
- Japan210
- Israel206
- Poland182
- Venezuela174
- Argentina168
- Middle East160
- Bolivia159
- Taiwan159
- Peru154
- Korea (South)147
- Africa, Sub-Saharan139
- Colombia138
- Soviet Union131
- Turkey121