Small is often difficult. Small differences as well. Especially big differences between small ones. Have a look. Here is how it works extremely bad.
Unemployment rate in August 2013. Source: the regional newspaper “Nürnberger Nachrichten”, 2013-08-30, page 4.
Because: a pie is already difficult. Because it is hard to read. Small pieces of pie are especially difficult. Because harder to read. Small pieces of pie adjacent to each other are even more difficult. Because even harder to read. What do we do instead?
Works better. Because: we have big differences between small values. It works even better like that. Point-bars. Logarithmic.
Redesign: me too.