1958

7.4

1970

7.3

2017

7.6

2007

5.0

2014

2.0

1962

7.2

2000

7.4

2022

6.0

1999

6.3

1975

2.7

1999

6.6

1961

4.0

1963

6.2

2014

5.9

2008

5.6

2016

4.0

1984

6.8

2008

4.7

1996

6.7

2014

4.7