2001

7.7

2011

8.7

1992

6.7

1996

8.1

2003

7.5

2005

6.8

2005

5.2

2012

8.0

2018

7.8

1996

9.0

2011

4.0

2011

7.0

2020

8.0

2011

9.7

2013

6.5

2020

7.7

2009

8.5

2025

7.0

2018

5.4

1983

7.3