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The diagram below shows the average hours of unpaid work per week done by people in different categories. (Unpaid work refers to such activities as childcare in the home,...

The graphs below show the types of music albums purchased by people in Britain according to sex and age.

The chart below shows the different levels of post-school qualifications in Australia and the proportion of men and women who held them in 1999.

The table below shows the figures for imprisonment in five countries between 1930 and 1980.

The bar charts below give information about the railway system in six cities in Europe.

The bar chart below shows the results of a survey conducted by a personnel department at a major company. The survey was carried out on two groups of workers: those aged from...

The graph shows estimated oil production capacity for several Gulf countries between 1990 and 2010.

The chart below shows the percentage of female employees in three job sectors in Greece from 1990 to 2015.

The chart below shows how the telephone subscribers in Vietnam developed throughout the year 2010.

The chart below shows the GDP growth per year for three countries between 2007 and 2010.