1979

7.0

2015

5.1

2014

9.7

2009

8.5

2008

6.8

1952

6.3

1948

4.9

2013

5.2

1945

4.6

7.3

2015

7.0

1976

5.2

2025

7.0

1958

5.0

1963

10.0

2005

9.9

2019

5.4