1999

6.2

2016

6.5

2002

7.1

1947

6.4

1991

5.6

2007

5.2

1953

7.1

1946

6.5

2012

5.6

1953

7.3

1933

6.8

2012

7.6

1954

7.2

1955

6.3

1984

6.4

1949

6.8

1987

6.3

1993

6.3

1949

6.7

2003

7.0