1981

8.1

1996

7.2

2000

6.0

1949

3.5

2024

4.8

2016

6.4

2016

7.0

1995

7.3

2006

4.7

2004

7.0

1984

6.0

2007

7.6

0.0

1990

7.3

1955

6.4

2004

6.4

1969

6.9

2008

6.9

1943

5.4

2016

6.5