2011

6.6

1959

6.1

1989

8.0

1964

7.2

1990

6.4

1954

7.1

2004

6.4

1982

6.8

1992

6.2

2013

3.6

1939

6.0

2020

7.0

1963

6.4

1978

6.6

2008

7.0

1950

7.1

1999

6.9

1999

2.0

1921

6.8

1982

1.5