1966

7.2

1962

7.3

2001

7.8

1999

5.7

1988

7.5

1995

6.6

2017

6.3

2007

6.9

2020

4.5

2003

5.8

2018

6.5

2005

7.0

2000

7.3

1967

6.9

1991

7.7

2002

6.2

0.0

1961

6.8

1979

7.7

1961

7.3