Pretty cool to see the difference of when each country started being affected and how each deviate from the most frequent drop, which happens at the week between the 8th of March and the 14th.

I highly recommend weekly normalization (average or median) because people usually don't use Maps on Sunday, it seems, so data is all jagged.

I'm happy that I could see, from this data, that weekly usage is increasing slowly but steadily in the last 30 days where I live (which would imply the gears are starting to turn again) and forecasting predicts that in another 7 weeks usage will be back to normal, but I think it's still early get good predictions.

No additional tracking of people is needed, Google/Apple/Telcos already know where exactly have you been in the last few weeks.