2017

6.3

1902

7.9

1984

6.2

2004

7.2

1990

7.3

1987

6.5

1968

7.6

1999

7.0

1982

8.1

1941

5.8

1937

7.0

2006

6.8

2006

7.6

1975

6.7

1998

6.1

1985

6.6

1994

6.3

1971

7.0

1973

6.9

1960

7.2