1984

6.1

2018

6.0

1976

7.3

1989

6.3

2005

5.2

2009

7.8

2003

7.2

1995

6.3

2012

7.0

2023

6.2

1972

7.3

1986

6.8

2008

5.2

1949

8.0

2005

6.2

2015

7.6

1994

8.5

2010

5.8

2013

7.8

1978

6.6