2005

5.7

1994

8.7

1972

8.7

2010

8.4

2006

7.4

1999

8.4

2009

8.2

1985

8.3

1980

8.2

2019

8.1

2008

6.7

2017

7.2

1941

7.0

2013

8.0

1979

8.2

2010

8.2

2004

7.2

2012

7.2

2013

7.2

2015

7.6