1959

6.3

2009

6.5

2010

2.0

1954

5.4

2014

5.5

1955

1.0

1966

6.2

1956

4.7

2014

4.6

1969

6.7

1949

0.0

1968

8.0

1957

7.5

1962

5.0

1966

0.0