1948

6.7

1937

3.7

1931

4.7

1939

0.0

1952

5.0

1936

6.9

2002

7.3

1958

7.8

1989

5.4

2001

6.7

1984

6.4

1988

7.0

2005

6.9

1954

8.0

1922

10.0

2006

7.0

1990

5.5

2008

5.7

1989

6.3

1994

6.4