1984

7.0

2018

7.9

1972

7.7

2010

6.7

2011

7.7

2018

7.0

2006

8.5

2017

8.0

2021

7.3

2013

8.4

1999

7.9

2006

8.0

1987

7.5

2004

7.2

2004

8.3

2019

8.6

1979

7.4

1985

7.2

2018

7.9

2007

7.4