2015

6.8

1940

7.1

1960

8.2

1987

7.8

2000

8.0

1952

7.7

1963

7.2

1985

7.7

1966

8.5

1994

8.7

2019

8.5

1985

8.3

1954

7.9

1946

7.7

1928

8.0

1986

6.7

1990

7.5

1957

8.5

1950

7.0

1989

7.0