1984

7.2

2004

9.5

2020

9.1

2008

8.1

2013

8.6

1993

7.0

2016

9.0

1991

7.3

7.0

2007

5.0

2017

5.9

2001

7.0

1979

6.8

2020

9.3

2024

10.0

2004

8.9

2000

8.0

1999

9.0

1977

6.0

2013

6.9