1983

4.5

1990

7.4

1988

4.0

2000

0.0

2017

5.4

1987

4.2

1983

0.0

1984

7.3

1987

5.6

1979

6.8

1986

7.0

2002

6.5

1993

7.0

1989

3.0

1982

6.3

1986

3.4

1998

5.2