1932

7.5

1995

7.0

2004

6.9

1995

6.7

1944

7.0

1957

7.6

1984

8.1

1951

7.6

1990

7.4

2006

7.7

1980

7.9

1993

7.7

1990

6.9

2004

4.5

2016

8.0

0.0

1998

8.3

1987

7.3

1983

8.2

2002

6.6