1977

7.2

1986

5.8

1972

5.0

1963

7.9

1971

7.5

1982

7.6

1992

0.0

1992

7.0

1982

0.0

1993

5.5

1985

5.7

1986

6.8

1975

7.1

1984

7.7

1980

5.4

1973

5.9

1977

7.4

1975

7.7

1988

0.0