The pie chart has multiple segments with the same colors, how is one supposed to parse it?

I do not understand how one can write an entire article about a set of data and then not present it in a way that is comprehensible?

Edit: Just discovered that hovering over the segments of the chart will bring up a tooltip with the name of the segment if JS is enabled, but this is not obvious to readers and I still don't think this is a good way to present data.