1937

4.6

1993

6.1

1929

6.3

1945

6.2

1964

6.9

1960

6.2

1984

2.5

1940

4.3

2020

6.3

2013

6.4

2013

5.7

1986

3.0

1964

5.8

2022

3.0

1953

7.1

2010

6.4

2017

4.0

1976

4.8

2017

5.5

2014

6.8