1991

6.8

1971

4.5

1996

0.0

2010

5.7

2010

4.8

1911

5.5

2000

5.3

2004

7.2

1918

6.0

1995

6.2

1904

5.5

1913

0.0

1893

5.5

2010

0.0

2010

6.8

2005

6.3

1912

5.6

2012

1.0

1914

6.5

2009

5.6