2017

6.5

2012

7.3

1960

6.3

2010

6.8

2000

6.4

1967

7.3

2004

6.7

1953

6.8

2010

7.6

1943

6.9

2003

7.2

2005

6.8

1947

6.7

2016

6.1

2000

5.8

1949

6.8

1940

6.6

1943

6.2

1945

5.7

1948

6.9