There is a lot of wonderful data that I can use to research markets. Market data can challenge our established ideas about a market or an industry; even ones that we think we know well.
For instance, as an iPhone user I might think that they are one of the more common mobile phones to own. After all, a lot of my friends have one. This chart illustrates the worldwide production of smartphones and you can see what percentage iPhones makeup the worldwide market. Check the graph.
iPhones makeup what percentage of the worldwide production of smartphones?