1966

7.3

2016

7.0

1989

7.2

1996

6.8

1929

6.5

1950

8.1

1990

0.0

1975

10.0

1961

7.2

2005

6.8

2002

7.1

1948

7.9

1994

5.1

1978

6.6

1958

7.1

2000

8.4

1962

6.4

2018

6.0

1960

5.7

2018

4.8