Table 1: Territorial distribution of sample units.
Territorial area | n. | % |
North-West | 625 | 25.0 |
Torino | 300 | 12.0 |
Milano | 325 | 13.0 |
North-East | 450 | 18.0 |
Bologna | 225 | 9.0 |
Padova | 225 | 9.0 |
Centre | 600 | 24.0 |
Firenze | 250 | 10.0 |
Roma | 350 | 14.0 |
South-Islands | 825 | 33.0 |
Bari | 275 | 11.0 |
Napoli | 275 | 11.0 |
Palermo | 275 | 11.0 |
Total | 2500 | 100.0 |