2005

7.2

2008

7.2

2005

6.2

2000

5.8

2004

8.1

1976

8.1

1999

7.4

1963

8.1

2014

4.3

1925

7.6

1984

8.1

1969

6.6

1971

6.4

2006

7.0

2005

6.8

1960

7.7

1993

7.1

2017

6.0

2001

6.5

2005

7.0