Go Figure: The week in numbers

Look back at the week in numbers with our Go Figure images, which are posted daily on social media.

Monday: Tiger numbers show increase for first time in a century

Tuesday: Stairway to Heaven in copyright trial

Wednesday: Companies get serious about water use

Thursday: Chibok abduction: The Nigerian town that lost its girls

Friday: Delhi 'odd-even' anti-pollution car rationing starts again

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