2005

5.8

2004

7.2

1961

7.6

1989

6.3

2018

7.2

2007

6.7

1945

7.0

2017

7.3

2001

6.5

2017

6.2

1994

6.6

1998

6.6

2008

4.8

1995

6.3

2000

6.0

2005

5.9

2006

6.9

1988

6.3

1995

6.2

1997

6.2