1986

8.4

2009

5.0

2007

7.1

1976

7.5

1980

7.5

1982

4.9

1983

7.0

2004

5.8

1991

5.7

1992

0.0

2023

7.5

2025

7.4

2007

5.4

2019

6.9

1985

0.0

2017

7.5

2020

6.2

1983

7.9