2004

7.9

2007

7.0

2017

6.1

1982

7.4

2008

8.1

2005

7.5

1997

7.8

2003

7.8

2006

6.6

1999

8.0

1944

7.6

2012

7.3

1995

8.4

2020

7.2

2012

6.9

1985

7.1

2012

7.1

1997

6.4

1984

7.3

1991

7.3