2005

6.8

1999

5.4

1966

7.1

1976

7.0

2006

7.0

1984

6.0

1978

5.9

1947

6.0

1969

6.0

1973

7.4

1992

7.4

1944

7.6

2004

6.1

2007

7.5

2016

7.3

1951

5.0

1979

8.1

1924

7.4

2002

6.3

2003

7.2