Thanks brewster, I have roughly calculated this at a global level based on vin to both stalls and locations a few times but you have done a much better job. Some thoughts that complicate the numbers
Places like sweden are affected by Norway through traffic on holidays. Possibly also Germany, France and Denmark. Anyone know about the Netherlands? I think bjorn complained due to Taxi's tying up the Chargers on a recent trip.
ratio of supercharger use to home usage will be vastly different between HK and AU for instance. Only Tesla will know this.
Destination on chargers may reduce the need for superchargers.
any private superchargers are not listed so fleets/taxi depots are missed (not many I guess though)
places like AU do not yet have widespread alternate chargers (CCS, Chademo) so Tesla may need to build more.
Tesla could come in hard and put in extra in AU to get a hard to beat network ready for model 3 and leave other next gen long range cars for dead;-)
i think your AU numbers could be increased by assuming NSW is ~50% of national so far, as we only have accurate numbers for NSW. IE q4 14 ~130, q1 15 ~238. Q4 15 ~1000, q4 16 ~3000. The 50% will probably shift now that VIC has a charging network, and I hope the approval included even more chargers next year.