1968

7.4

1896

7.1

2014

4.8

2014

6.0

2013

6.0

1976

7.3

2002

7.5

2000

5.6

1978

6.8

1926

0.0

2011

5.7

2004

6.5

2002

6.9

2006

7.2

2003

6.6

2006

6.6

1999

6.0

1995

7.1

1992

5.2

1888

6.3