1992

7.4

2013

7.2

1976

7.8

2006

6.6

1944

7.5

1983

7.8

1954

7.3

2006

5.4

2006

6.5

1999

7.2

2020

10.0

2007

6.7

1974

6.3

1994

0.0

1986

2.0

1977

4.6

2013

6.3

1997

8.4

2002

6.3

2018

6.1