1896

7.1

1956

6.1

2010

5.5

2011

7.1

1895

6.8

2014

7.1

1996

5.9

1989

5.0

2008

6.3

1998

5.1

2005

5.2

2009

7.5

1980

5.7

2006

6.6

1895

5.5

1985

7.4

2015

7.6

2001

5.8

1968

6.6

1944

7.1