1924

7.4

2005

6.2

2002

6.1

2000

6.5

2008

6.5

1976

7.2

1944

5.8

2006

0.0

2012

8.2

1974

5.7

1988

1.5

1964

5.9

1950

6.9

2013

4.7

1967

7.3

2013

6.0

1983

0.0

2008

5.3

2016

0.0

2019

4.5