2010

6.8

1957

5.3

1941

7.0

2011

7.0

2006

7.4

2004

7.2

2012

6.3

1961

7.2

1940

7.1

1998

7.0

1985

8.3

1979

7.6

1999

6.1

1993

4.9

1995

6.9

1951

7.2

2003

5.9

1955

7.1

1994

8.7

1989

7.2