1980

4.7

2013

5.0

1913

4.7

1908

6.0

1994

6.4

2006

4.7

2008

6.5

2013

7.0

2010

5.0

2001

0.0

1943

0.0

2013

7.2

2000

5.8

1991

4.2

1995

4.1

1956

0.0

2011

5.0

2013

0.0

1918

6.0

1997

5.5