1912

5.2

2010

5.7

1904

5.5

2004

7.1

2007

0.0

1991

6.8

2009

6.2

1970

0.0

1971

4.5

1893

5.5

1995

6.2

1911

5.5

2013

4.4

1918

6.0

2000

5.3

2010

4.8

1997

7.7

2008

5.9

2008

7.5

2009

6.7