1968

6.9

2008

7.4

1993

6.1

1982

5.9

2007

9.8

2003

6.2

2005

8.3

2018

5.3

2007

5.7

2012

6.3

2003

6.9

1989

9.3

2017

5.9

2017

6.0

2010

6.8

2009

6.8

2013

6.0

2023

9.6

2002

7.2

2019

5.6