They officially launched in 2014, I believe. They have some 20 million customers, last I checked, which gives ~10k customers per day on average from 2014. It ma

They officially launched in 2014, I believe. They have some 20 million customers, last I checked, which gives ~10k customers per day on average from 2014. It makes sense that it would have been fewer per day in the beginning, and then accelerated.