Giorgio-4-19 Bruno-20-14 Luca-20-16

Name: Giorgio
Average number of cigarettes smoked in a day: 4
Started smoking when he was: 19

Name: Bruno
Average number of cigarettes smoked in a day: 20
Started smoking when he was: 14

Name: Luca
Average number of cigarettes smoked in a day: 20
Started smoking when he was: 16