| Nationality and Gender | 2019 | 2018 | 2017 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Men | Women | Total | Men | Women | Total | Men | Women | Total | |
| Italy | 535 | 141 | 676 | 528 | 134 | 662 | 531 | 135 | 666 |
| France | 37 | 9 | 46 | 33 | 8 | 41 | 14 | 7 | 21 |
| Germany | 20 | 4 | 24 | 22 | 3 | 25 | 17 | 4 | 21 |
| United Kingdom | 2 | 1 | 3 | 3 | - | 3 | - | - | - |
| Bulgaria | 1 | - | 1 | 1 | - | 1 | 1 | - | 1 |
| Poland | - | 1 | 1 | - | 1 | 1 | - | 1 | 1 |
| Romania | 2 | 1 | 3 | 2 | 2 | 4 | 2 | 2 | 4 |
| Total | 597 | 157 | 754 | 589 | 148 | 737 | 565 | 149 | 714 |