1986

6.8

2022

5.6

2020

7.4

2011

7.3

1997

8.3

2005

7.6

1974

7.5

2009

6.5

1977

6.4

1968

6.5

2020

7.2

2023

7.1

1946

7.6

1964

7.4

1966

7.3

1974

8.6

1965

6.8

1965

6.3

2007

8.6