18.9 % were of Finnish , 13.9 % Slovene , 13.8 % German , 8.0 % Norwegian , 7.3 % Italian and 5.8 % Swedish ancestry .
18.9 % were Finnish , 13.9 % Slovene , 13.8 % German , 8.0 % Norwegian , 7.3 % Italian and 5.8 % of Swedish descent .