1976

7.2

1999

7.1

1996

5.8

1938

4.3

1998

7.0

1955

5.9

1933

0.0

1997

5.6

2010

5.6

2006

4.7

2021

5.5

1939

6.7

2009

7.3

1933

0.0

1930

5.0

1947

6.3

1965

6.0

1948

6.0

2006

5.4

1987

3.0