1979

6.4

2010

0.0

1978

7.5

1997

7.3

1989

5.0

2017

7.7

1992

7.7

2021

6.2

2015

5.4

1989

6.0

1994

8.2

2023

0.0

2003

5.8

1995

7.3

1993

7.7

1995

7.8

2012

4.5

2011

8.5

2024

0.0

1988

7.4