1995

8.4

1931

8.1

2021

7.0

1978

7.6

1971

7.4

2000

7.4

2025

6.4

1991

8.3

2006

5.7

1997

6.8

1995

6.5

1984

6.0

2019

5.9

2007

7.5

1960

8.4

1972

7.1

1980

1.0

1996

6.0

2024

6.6

1997

6.0