I know there are fewer usable sources now but that doesn't mean the median should be leveled off with irrelevant sources. The other sources are relatively outdated so adding them in would not be representative of the November browser usage share. Also 2 out 3 of the sources were Europe only and 1 of those was excluded already for that reason. If more sources are to be considered they need to be global and reliably update at least monthly otherwise the medians would be heavily skewed in scope and/or time which would be a worse situation than not having them at all which is as it currently stands.