2004

7.9

1991

7.6

2014

7.0

2015

7.2

1983

7.4

2003

7.7

1982

6.7

1998

7.2

2008

6.4

2019

6.7

1970

7.5

2010

5.5

1966

7.9

1961

6.8

2001

7.0

2023

8.5

1957

6.7

1999

6.2

1978

0.0

1965

7.2