1990

6.9

1995

6.5

2021

6.8

1968

6.5

1954

7.2

1977

6.3

2020

7.8

1933

5.4

2007

5.9

1998

6.3

1998

6.7

1936

6.8

1968

7.0

2025

6.0

1952

6.5

1934

7.8

1955

6.6

1985

7.1

1929

5.4

2010

6.2