1922

7.7

2007

5.6

2010

5.0

2000

6.1

1910

6.0

1904

7.2

1918

6.4

1920

6.9

1924

5.9

1946

5.7

2006

6.8

1966

3.8

1954

6.3

1947

6.7

2009

6.9

1921

7.4

1957

4.5

2014

6.2

1941

7.0

1926

6.3