Interesting. Nice to see. We are enthusiasts, so we replace our computers/motherboards every few years. Considering that most people don't, especially outside of the developed countries, the increase is significant. 3% share of all computer owners gained within 1.5 years means a LOT of Ryzen CPUs sold.
I have no idea where the "30% by the end of the year" value was taken from. I don't think it's achievable within the next 5 YEARS unless AMD somehow manages to absolutely revolutionize the market with some triple-digit IPC gains. There is no way every fourth computer owner on earth replaces their perfectly fine Intel computer with a Ryzen computer, and that assumes no AMD users switch to Intel too, by the end of the year. That is an absurd concept.
An AVERAGE life cycle of a computer is ~7 years at the moment. If every Intel computer on earth was to be replaced by an AMD computer, it would still take AMD years to reach 30% market share. Also, to see the problem from another perspective, the world's fab capacity would be insufficient to together manufacture enough chips to suddenly sell numbers of chips equal to 20% of the world's current supply within 3 months.