1984

9.2

1968

6.9

1993

6.1

2018

7.0

1970

7.7

2015

5.9

2017

6.0

2024

7.6

1988

5.5

2012

6.4

1982

5.9

2007

7.0

2021

7.7

2012

9.8

2004

6.7

2001

6.9

2012

9.7

2002

8.5

2014

6.8