1984

7.2

1990

7.4

1986

5.4

2000

8.0

1982

7.3

1997

8.0

2012

2.0

1985

7.7

1988

10.0

2007

4.1

1982

7.1

1987

6.5

1990

7.9

2023

0.0

1994

5.6

1988

4.9