United States of America

2012
8.0
1986
4.4
1954
6.4
2003
6.4
2014
8.5
1972
8.7
1991
5.5
2025
8.1
2021
7.9
2024
6.6
2025
6.7
2024
6.9
2025
6.9
2025
6.5
2024
7.1
2025
7.0