1977

5.4

1985

6.9

2006

5.5

2011

10.0

2012

4.6

2007

5.4

1994

4.9

2004

6.4

1996

5.3

1968

7.4

2012

6.2

2017

6.1

2022

0.0

2021

9.0

2020

7.0

2018

4.3

2022

10.0

2005

6.7

2011

0.0

1991

7.1