1988

8.0

1987

0.0

1982

5.5

2016

3.5

2006

6.7

2017

6.6

2006

7.8

1984

5.9

2008

6.3

2007

4.8

1997

6.1

2004

5.6

1966

0.0

1973

7.5

1976

7.0

2007

5.0

1968

7.6

1976

6.2

1962

4.8

2007

7.4