| Rank | Nationality | Wins |
|---|---|---|
|
1
|
Italy |
292
|
|
2
|
Spain |
212
|
|
3
|
USA |
154
|
|
4
|
UK |
141
|
|
5
|
Australia |
127
|
|
6
|
France |
16
|
|
7
|
Rhodesia |
12
|
|
=
|
Japan |
12
|
|
9
|
Netherlands |
8
|
|
10
|
Brazil |
7
|
|
11
|
Portugal |
5
|
|
12
|
Ireland |
4
|
|
13
|
New Zealand |
3
|
|
=
|
Finland |
3
|
|
=
|
Venezuela |
3
|
|
16
|
Argentina |
2
|
|
=
|
South Africa |
2
|
|
18
|
Germany |
1
|
|
=
|
Switzerland |
1
|
|
=
|
Czechia |
1
|