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: Oil price slide and sanctions 'cost Russia $140bn'
Tuesday: Wizard of Oz and Casablanca memorabilia fetches millions at auction
Wednesday: The unlikely battlegrounds on which World War One were fought
Thursday: How world's worst Ebola outbreak began with one boy's death
Friday: Shocking scenes as Britain catches US 'Black Friday' fever