1971

6.0

1934

7.0

1966

6.3

2006

6.7

2010

7.4

2012

6.4

2007

6.4

1995

5.9

2003

5.3

1962

6.9

2008

5.8

1965

6.8

2008

7.0

2007

7.2

2008

5.4

1997

6.1

2016

6.4

2016

6.1

1940

6.3

1971

4.7