2001

6.5

1932

7.4

1919

6.9

1946

7.6

1995

7.3

1995

7.9

1941

7.7

1948

7.9

2005

6.7

1988

7.7

1996

7.4

1945

8.1

1999

7.3

2001

4.7

1992

6.6

1984

6.7

1973

6.8

1969

0.0

2019

0.0

1980

6.2