The table below shows types of YouTube ads, their average lengths and how long people watch them.
The chart below shows the sleep patterns of people in five different occupations according to a Canadian study.
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The table gives information about the number of people working as researchers in technology per million people in five countries.
The table below shows average hours and minutes spent by UK males and females on different daily activities.
The table below gives information on consumer spending on different items in five different countries in 2002.
The table below shows social and economic indicators for four countries in 1994, according to United Nations statistics.
The table below shows the consumer durables (telephone, refrigerator, etc.) owned in Britain from 1972 to 1983.
