1972

7.1

1988

7.8

1997

7.1

1975

7.7

1990

7.8

1994

7.4

1939

7.6

2021

6.6

2022

7.1

2000

6.3

1956

6.6

1941

5.7

1937

7.0

2019

7.5

1977

4.7

2007

6.8

1978

7.2

1995

5.1

2004

6.0

1995

6.5