| 17 × | science |
| 17 × | history |
| 13 × | people |
| 11 × | health |
| 11 × | social |
| 10 × | sport |
| 10 × | life |
| 9 × | religion |
| 8 × | society |
| 8 × | military |
| 8 × | music |
| 7 × | triumph |
| 7 × | war |
| 6 × | conspiracy |
| 6 × | mystery |
| 6 × | crime |
| 6 × | achivement |
| 4 × | discovery |
| 4 × | earth |
| 4 × | journey |
| 4 × | violence |
| 4 × | sex |
| 4 × | death |
| 4 × | art |
| 4 × | world |
| 4 × | medicine |
| 4 × | government |
| 4 × | nature |
| 3 × | evil |
| 3 × | space |