2006

6.6

1981

5.4

1997

7.5

1994

6.7

2002

5.8

2004

7.2

2012

5.6

2014

6.3

2003

4.7

1980

3.4

2007

7.2

2008

6.8

2019

6.3

2008

4.5

1987

0.0

2006

6.0

2016

7.0

2018

0.0

2025

10.0

2022

7.3