Talking to Americans

6.514

/

2005

8.011

/

2004

8.708

/

1994

8.7

/

1972

7

/

1994

8.468

/

1994

7.808

/

2003

8.2

/

1998

6.571

/

2002

8.202

/

2006

7.921

/

1981

8.03

/

2013

8.161

/

1979

8.4

/

2010

7.12

/

2010

7.8

/

2010

7.842

/

2001

7.218

/

2004

6.638

/

2010

8.489

/

1994