100% Stacked Bar

0

20

40

60

80

100%

Fraction of Words INFO from different sources

1960

26.0

28.8

45.0

1980

12.3

25.0

60.0

2008

26.9

8.6

5.3

10.6

45.0

Source: Bohn and Short, 2009, "How Much Information? 2009 Report on American Consumers"