1962

8.2

1985

6.4

1969

5.0

2013

5.5

2004

6.3

1983

4.3

2008

6.8

2008

3.1

2016

10.0

2017

6.6

2016

7.3

2007

7.0

2006

5.4

1940

6.5

2007

5.5

1941

7.4

2001

6.0

2021

0.0

1980

5.5

1980

0.0