1975

6.8

1998

6.2

1949

6.6

1939

6.1

1934

3.0

1940

6.1

2018

6.4

2017

7.7

1969

5.0

1996

6.9

2009

6.5

2022

10.0

1956

7.2

1956

7.1

1978

7.0

2017

6.6

1992

3.8

2014

7.1

1979

7.0

1953

6.3