1938

5.2

2002

6.1

2009

5.8

1960

5.6

1989

6.6

1936

6.0

1918

4.8

1908

6.0

1916

6.7

2013

7.0

1918

6.0

1913

5.3

1933

5.7

2008

6.1

1914

5.3

1914

5.1

1914

6.1

1914

5.5

1914

5.5

1914

5.6