1972

6.3

1938

4.5

1976

6.4

1975

6.5

1986

0.0

1956

8.0

2013

6.0

2000

5.8

1961

10.0

2014

4.4

2012

6.2

2009

6.2

1960

4.0

2004

7.1

1992

6.9

1938

7.1

2005

6.5