1989

6.4

2001

5.0

2021

7.4

1994

6.6

1997

0.0

2014

7.1

1985

4.0

1983

7.3

1981

0.0

2019

6.8

1978

5.2

1975

4.7

2019

7.3

2022

7.5

2003

0.0

1974

8.0

2013

7.1

2011

7.6

2004

8.1

2013

6.8