1977

4.6

1990

5.8

1997

4.2

1971

4.2

2018

6.1

2024

6.8

2022

7.4

1982

6.3

1976

5.6

1999

7.5

1982

2.5

2020

0.0

1995

7.6

1973

5.3

1992

7.4

1975

0.0

2008

6.7

2007

7.5

1980

4.0

2004

7.7