Despite a steady decrease in the average number of hours worked per person per week, the share of the population that reads a daily newspaper has declined greatly in the past 20 years  But the percentage of the population that watches television daily has shown a similarly dramatic increase over the same period
Clearly, increased television viewing has caused a simultaneous decline in newspaper reading
Of those members of the population who do not watch television, the percentage who read a newspaper every day has also shown a dramatic decrease.