2001

7.0

1980

7.0

1983

6.1

2004

7.2

2003

7.3

1970

7.6

1977

7.0

1998

6.3

1962

8.0

1984

6.8

2016

0.0

1990

6.0

2017

5.9

2017

6.4

2015

5.6

2002

6.7

1962

6.8

1961

8.1

2004

4.6

1971

7.1