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WS MoreOrLess: Numbers of the Year part 1.
What is so special about 39,222 Mexican teachers? In the first of three episodes looking back at 2014, Mexico specialist Professor Carlos Vilalta tells Tim Harford. This programme was first broadcast on the ÃÛÑ¿´«Ã½ World Service.
Podcast
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More or Less: Behind the Stats
Tim Harford and the More or Less team try to make sense of the statistics around us.