1920

6.9

1930

5.8

2005

0.0

1951

6.7

2010

5.2

1919

5.9

1918

5.3

1916

0.0

1956

7.1

2001

6.0

1918

6.0

1922

6.2

1934

5.3

1955

6.3

1945

6.7

1945

6.6

1954

6.5

2011

5.6

1950

6.7

2013

3.5