0.0

1969

6.6

2001

8.7

2014

6.2

2005

7.8

2016

0.0

1981

6.4

1997

5.2

1941

0.0

1914

0.0

2005

6.3

2000

0.0

2004

0.0

1963

7.9

2018

0.0

2017

7.3

2007

6.5

2002

5.8

1936

6.1

1930

0.0