Races per nation
Number of races and racedays per country in 1991.
Top nations for team
66% of all racedays for PDM - Ultima - Concorde were in Spain, France or Belgium.
66%
Per country
| Pos. | Nation | Number of races | Racedays |
|---|---|---|---|
| 1 | Belgium | 17 | 19 |
| 2 | Spain | 13 | 42 |
| 3 | France | 12 | 34 |
| 4 | Italy | 7 | 14 |
| 5 | Netherlands | 4 | 9 |
| 6 | Australia | 2 | 4 |
| 7 | Canada | 2 | 2 |
| 8 | Switzerland | 2 | 7 |
| 9 | Austria | 1 | 1 |
| 10 | Germany | 1 | 1 |
| 11 | Great Britain | 1 | 1 |
| 12 | Ireland | 1 | 5 |
| 13 | United States | 1 | 2 |