1978

6.6

1977

6.2

2000

6.0

0.0

1987

7.0

1980

7.8

2019

7.3

1987

6.9

2010

7.0

1976

0.0

1961

7.0

2008

7.9

1999

7.6

2011

4.0

2024

0.0

2019

8.3

2001

7.0

2003

8.0

2006

6.5

1983

6.6