1917

5.5

1922

6.1

1920

6.7

1922

7.2

1922

6.5

1921

6.8

2008

6.4

1919

6.3

2006

6.6

2002

6.9

1934

5.4

2011

5.7

1916

6.7

1908

5.2

2008

6.4

1927

5.0

2014

7.4

1986

7.0

1911

3.1

1999

6.2