Animation: How much has Nigeria changed since 1999?

Nigeria goes to the polls on Saturday, with what some are calling the closest contest yet since the end of military rule in 1999.

But how much has life changed for Nigerians in the democratic era?

Produced by Arjun Kohli and Stefano Cassini

Directed by Stefano Cassini

Sources: World bank, CIA Fact book, Africa Practice