1911

0.0

1915

6.0

1927

7.8

1928

8.0

1925

7.6

1922

7.1

1924

7.4

1926

0.0

1919

6.9

1931

8.3

1929

7.5

1925

8.0

1925

0.0

1930

7.2

1918

1.0

1928

0.0

1917

5.2

1920

7.9

1920

0.0

1929

0.0