1999

7.5

2006

5.4

2018

9.3

2011

5.9

2019

7.2

2025

9.5

2022

6.6

2011

7.6

2016

7.1

2018

7.3

2013

8.0

2005

8.3

1987

5.5

2009

7.5

2014

6.4

2003

4.9

2008

7.8

1997

7.5

1997

7.1

2017

5.9