1966

6.5

1964

5.8

1965

1.0

1959

6.0

1967

4.4

1982

5.2

1966

5.5

1971

7.1

1973

6.7

1962

5.0

1959

6.2

1962

5.7

1980

5.4

1973

6.6

1970

5.3

1968

6.3

1961

7.1

1974

4.4

1965

3.6

1963

6.5

1959

6.3