1946

7.2

2013

6.6

2008

6.2

2012

9.4

1958

7.0

1990

6.0

1982

7.6

2007

5.5

1973

7.1

1924

7.3

1964

7.0

1984

7.3

1964

7.1

1930

6.8

1945

7.2

1987

6.8

2017

7.4

1971

6.8

2004

5.2

2010

5.5