1973

6.8

2021

7.9

2012

10.0

2022

8.7

2017

6.5

2005

0.0

2006

0.0

1981

7.4

2013

5.5

2011

6.0

2008

5.7

2008

4.7

2009

6.4

1999

6.5

1982

6.0

2018

7.0

2000

6.9

2001

6.6

2003

6.4

2015

7.1