1981

5.2

1939

7.6

2013

0.0

1989

7.5

2016

4.0

1940

7.4

1992

7.7

2018

6.5

1967

7.3

2018

7.2

2013

5.2

1996

7.1

1989

7.4

1998

7.9

1953

7.2

2007

5.9

2006

6.6

1979

5.0

1997

7.6

1993

7.8