1987

6.6

1969

7.1

1998

5.9

1980

7.5

1973

5.2

1989

7.2

1994

0.0

1955

1.0

1966

6.7

1959

0.0

1987

6.1

1967

0.0

1987

0.0

1965

6.4

1960

6.5

1969

0.0

1973

5.6

1982

7.5