2006

5.7

1970

0.0

1960

6.0

2005

5.4

2004

7.3

2003

5.8

1998

6.8

1997

6.5

1996

7.1

1968

6.0

1916

6.7

1908

5.2

2008

5.1

1996

0.0

2008

6.4

2010

6.8

1969

0.0

1971

4.5

1992

6.0

2012

7.0