GNU/Linux has been languishing, according to StatCounter, at below 1% share until recently and I thought I would collect data to see how it fared on different continents.
As you can see, the rate of growth of installed base is greatest in North America and Europe and slowest in Africa and Asia. Since the latter two are the very populous we should reflect for a moment to think what could be the reason. That advantages of GNU/Linux should be great for emerging economies not locked in to that other OS, but it seems the illegal copying has given Wintel a very large share at the same time that Android/Linux computers are taking share from Wintel. That is probably swamping the growth of GNU/Linux but GNU/Linux is still growing in share by a good rate. Statcounter may or may not reflect African and Asian markets well and I expect business, governmental and educational use are undercounted everywhere because of the nature of the sites monitored and the activities of folks working in such organizations.
So, we should not weep for GNU/Linux but celebrate the triumph of FLOSS over that other OS which has nowhere to go but down. Positive feedback works both in rising and falling share situations. The more folks see that FLOSS works for them, the more folks will choose FLOSS whether they are OEMs, retailers or consumers.