1956

7.5

1993

6.9

2012

7.1

1998

7.1

1950

7.1

1944

6.3

1961

6.8

1963

7.5

2000

7.2

1980

6.8

1981

6.7

1983

6.2

1996

6.2

1977

7.1

1982

6.0

2016

6.7

2024

7.8

2006

5.0

2004

6.0

2015

6.2