1931

6.8

1935

5.0

2006

5.8

2002

6.3

1999

5.8

1995

6.2

2025

0.0

1938

3.8

1986

7.5

1940

7.9

2002

6.7

1971

7.5

1935

7.3

2003

7.7

1999

7.5

2006

7.4

2000

7.0

1964

7.6

2023

4.7

1972

7.8