There are now 13 unsupervised Tesla robotaxi in Austin. There was a 2 months at the 8-10 unsupervised level. Three were added over the last 10 days. This would suggest about 20 by mid next week.
NHTSA has reported no accidents in the Feb-Mid March timeframe.
There are hundreds of Cybercabs ready roll into Austin as unsupervised. This could be the level at the end of May. A few hundred unsupervised in Austin.

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Frankly, I suspect somebody will die from this decision in the near future. Note, if the technology is good enough for one unsupervised vehicle then it should be good enough for all of their vehicles. I suspect the only reason that it’s being used for only a handful of vehicles is that they are cherry picking the rides so as to limit the dangers encountered.
Slow at first, then all at once, erm, I mean: Slow at first, then still slow later.