I have 10.5 for Norway:
Number of cars: 4,8 MN
Average age of car fleet: 9,9 years
Population: 10,2 MN
Sweden
Number of cars: 2,8 MN
Average age of car fleet: 10,5 years
Population: 5,5 MN Norway
Number of cars: 2,5 MN
Average age of car fleet: 8,4 years
Population: 5,7 MN
Denmark
Number of cars: 3,1 MN
Average age of car fleet: 12,5 years
Population: 5,5 MN
Finland
Number of cars: 22,5 MN
Average age of car fleet: 17,3 year
Population: 37,9 MN
Poland
Number of cars: 0,7 MN
Average age of car fleet: 16,7 years
Population: 1,3 MN
Estonia
Number of cars: 0,6 MN
Average age of car fleet: 14,1 year
Population: 1,9 MN
Latvia
Number of cars: 1,1 MN
Average age of car fleet: 16,9 years
Population: 2,7 MN
Lithuania
Copied off a powerpoint hence formatting