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

2018

6.8

1988

0.0

2009

7.2

1999

6.0

1965

10.0

1969

4.2

1994

4.8

1963

3.0

2023

0.0

1979

6.7

1991

6.8