1966

7.7

1963

6.4

2008

6.7

2017

1.0

2018

6.8

2014

0.0

2010

6.5

2022

6.0

1970

8.2

0.0

2007

5.9

1973

6.3

2014

0.0

2006

6.4

2007

5.7

2016

6.9

2017

7.3

1988

6.5

1958

7.2

2007

6.5