1989

7.3

2003

5.2

2015

4.6

2014

8.5

2016

6.7

2004

9.9

2007

7.6

2012

5.7

1973

6.3

2016

6.8

2022

6.2

2011

5.7

2016

7.3

1982

5.8

2013

8.7

2017

5.7

2017

7.0

1984

5.7

2014

8.5

2000

5.8