2008

6.6

1982

5.7

1978

8.0

1976

7.5

1968

6.0

1968

6.9

2020

7.4

1961

7.2

2019

6.1

1973

7.7

1949

8.0

1989

5.1

1982

7.6

1988

6.5

1976

7.6

1974

7.0

1966

6.4

1944

7.6

2014

5.8

1970

7.2