2016

6.8

1988

7.3

1965

7.9

1982

5.8

1939

6.1

1989

5.1

2000

7.1

2012

9.3

1989

7.2

1974

6.7

2007

7.0

1988

5.7

1941

7.5

2008

6.8

2017

6.6

1965

6.9

1973

6.9

1976

6.8

2005

7.7

2004

6.1