1996

8.0

2020

6.0

2016

9.3

2018

6.7

2017

6.8

1995

6.4

1988

5.5

1993

4.8

1977

6.7

2020

6.7

2006

5.9

1987

10.0

2000

7.7

1982

7.5

2007

3.8

2022

8.5

2016

10.0

2005

5.4

2023

6.9

2008

7.6