1939

7.8

1952

6.7

2005

8.6

2020

6.1

1972

7.4

1986

6.7

1965

6.4

1921

6.8

0.0

1955

7.2

1964

7.0

1984

7.0

2003

6.8

1990

6.8

1937

7.1

1999

6.2

2000

6.9

2017

4.5

1990

6.4

1993

6.9