Recreational walking is by far the most popular leisure activity in Britain: 16% of Britons do it each week compared with 11% who go to the gym.
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Games specifically designed to be played on mobile phones already account for $8 billion of the $56 billion global games market, even though they typically sell at less than a tenth the price of a traditional console game.
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In the UK, some 45% of people smoked in the mid-1970s; now 21% do.
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In 2010, 1.6 billion handsets were sold worldwide, a 31% rise on 2009.
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The average webpage has grown 33% in size in the last year, up from 726 kilobytes in 2010 to about 965 kilobytes in 2011.
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