1962

7.9

1986

8.0

1990

7.5

1993

7.8

1996

7.6

1942

6.0

1946

6.0

2020

5.7

1987

6.2

1985

6.0

1902

7.9

1997

7.6

1972

6.4

1956

7.2

1955

6.0

1998

6.8

2005

6.2

2019

6.1

2019

6.2

2019

6.1