1984

6.7

2025

7.0

1971

5.6

2023

6.3

2020

6.7

1980

7.0

2009

6.2

1991

8.3

2009

5.6

1980

6.0

1995

7.4

2017

5.9

2009

6.2

1972

4.0

1986

7.7

2011

6.3

1950

7.7

1976

7.8

2004

5.8