1952

8.3

1950

5.3

1935

4.5

2010

10.0

2020

7.8

1975

7.3

1990

1.0

1972

7.4

1966

6.1

2007

6.4

2002

5.6

2017

0.0

1969

5.0

2000

7.4

1999

0.0

1991

6.7

1932

7.4

1991

6.1

1957

3.5

1960

8.2