1992

6.8

2005

4.6

2016

5.0

1989

6.0

2003

8.1

2019

4.0

2024

6.7

1986

4.0

0.0

2012

7.1

1981

4.3

2020

8.0

2018

6.5

2020

5.9

2018

5.0

2008

6.4