2017

6.2

1971

6.1

1976

6.9

2003

6.2

2020

6.5

2003

6.8

1994

6.8

1988

7.6

1988

6.7

1958

7.6

2007

5.3

1982

7.6

1970

7.6

2007

4.7

2013

6.7

1938

7.1

1979

7.1

1949

7.5

1988

5.7

1971

7.3