1952

7.7

1959

6.1

2002

6.4

1968

6.5

2007

6.5

1967

7.6

1967

0.0

1948

6.6

1958

7.0

1954

7.0

1962

5.6

1961

5.1

1960

6.0

1956

5.0

1969

5.5

1950

6.8