2002

6.3

2007

5.3

2012

7.0

2008

6.5

1998

7.2

2005

5.8

2005

7.3

2017

7.9

2017

8.0

2005

5.3

2008

4.3

2007

4.3

2021

6.1

1986

7.0

2011

3.1

2025

7.5

1989

6.6

1981

6.9

2006

3.4

2014

6.8