1980

6.8

2018

7.8

2019

6.4

2023

10.0

2003

7.9

2013

10.0

2002

6.0

2006

7.1

2004

5.3

2005

6.7

2012

0.0

1999

7.7

2010

0.0

1996

6.5

1988

7.6

2002

0.0

2022

0.0

1994

10.0

2011

7.1

2014

5.7