2004

8.3

2023

8.6

1998

7.2

2008

7.7

1996

5.4

2023

9.1

5.8

1993

6.7

1992

5.8

1985

7.5

2016

6.5

2016

7.1

2013

7.3

2004

8.1

2007

7.8

1977

5.3

2008

8.5

2012

6.7

2011

7.4

2011

6.7