1987

5.3

1990

5.8

2004

6.1

2023

4.1

2022

6.0

2008

4.5

1950

7.5

2024

6.9

1993

7.3

1939

7.1

2014

5.8

1961

7.7

1944

6.9

1969

6.6

1988

6.5

1947

7.3

1948

7.4

2010

6.6

1974

6.2

1992

6.3