1985

7.5

1984

5.5

1999

7.9

1989

7.0

2024

4.2

2009

6.4

1994

6.0

1984

6.3

2009

4.0

2015

7.8

1993

5.8

2005

6.9

2011

8.0

2017

7.2

2005

7.4

2021

7.0

2004

6.7

2020

8.1

2025

0.0

2021

6.2