1990

6.5

1998

6.1

1939

7.6

1956

7.6

1962

6.6

1960

7.5

1958

6.0

1971

6.2

2015

7.6

1991

6.4

1986

3.5

2005

7.8

1966

8.5

1964

7.2

1952

7.7

1950

0.0

1969

6.9

1971

7.4

1995

6.5

1937

0.0