What kind of Chart would you use?

[James D Jarvis]

Lot's of good advice here already.  I worked as a a technical illustrator for decades and have drawn thousands if not tens of thousands of charts; the choice of chart depends a lot on what you want to do with that chart, that a has a large impact on choice. The only wrong answer is the one that obfuscates your data against your wishes.
That link TerryRitchie provided is pretty good and worth reading and covers the general topic well.