1972

6.8

1988

4.6

1984

4.4

1987

0.0

1972

4.2

2017

6.1

2004

3.1

1989

6.3

1988

5.5

1982

5.1

1984

4.3

1996

4.9

1981

6.3

1988

5.4

1981

5.3

1972

6.1

1995

4.8

1997

5.7

1988

3.0

2004

3.9