1981

5.1

1979

5.1

2013

7.7

1974

5.1

2017

0.0

1978

5.8

1967

5.6

1970

4.6

1972

5.3

1975

5.0

1969

5.2

1971

1.0

1977

5.2

1958

0.0

1963

6.0

1971

5.2

1973

5.1

1965

5.6

1967

5.0

1978

5.2

1968

5.0

1982

5.2

2011

7.1

1966

5.5