1896

7.1

1980

4.7

1956

1.7

1991

6.2

2008

5.5

1997

6.5

2002

7.0

1999

6.3

1998

6.9

1997

6.8

1996

7.1

1950

2.4

2013

7.2

1919

0.0

2005

5.4

2004

7.2

2003

5.8

1894

5.2

2004

5.6

1888

6.4