1982

6.6

2007

8.0

2004

5.4

1984

8.2

1986

9.2

1969

7.5

1981

7.3

1979

0.0

1967

6.4

1989

8.1

1962

7.4

1974

7.7

1991

4.5

2004

5.0

1974

0.0

1979

7.6