1979

6.4

1996

6.7

2021

6.5

2024

7.9

2021

7.2

2007

7.2

2008

6.2

2008

7.3

2002

6.3

2015

7.8

1988

0.0

2017

5.7

2009

7.2

1959

4.0

1999

6.0

1965

10.0

1987

0.0

1963

3.0

1945

0.0

1961

6.5