« Previous
Next »
Subject (Region)
- United States3,132
- Great Britain435
- Germany289
- California260
- Italy214
- Japan208
- Soviet Union191
- China180
- France175
- Developing countries158
- England142
- Florida112
- Canada106
- India100
- Germany (West)95
- Washington (State)92
- Europe89
- New York (State)87
- Texas79
- Netherlands74