1972

8.0

1984

7.8

1959

7.0

1967

7.3

7.5

2001

6.8

1997

8.6

2006

8.2

2004

8.3

2002

5.7

1972

7.7

1985

7.9

1980

9.2

1977

8.2

2023

0.0

2024

6.7

2016

1.0

2023

6.6

2006

0.0

2014

0.0