2009

6.2

1971

4.5

1991

6.8

2010

7.2

1918

6.0

2000

5.3

1911

5.5

1995

6.2

1912

5.2

2013

4.4

2010

5.7

2010

4.8

1893

5.5

2007

0.0

2004

7.1

1904

5.5

2002

2.7

2009

7.0

2012

0.0

1910

2.5