The numbers reflect my anecdotal observations of its usage. I started playing with it in 2014, while working at Amazon. There were tons of repos in Amazon's sou

The numbers reflect my anecdotal observations of its usage. I started playing with it in 2014, while working at Amazon. There were tons of repos in Amazon's source control system, and it seemed to be growing fast. By 2016, most of them were effectively zombie services, or dead repos that had been replaced...mostly by java, with a smattering of kotlin and scala. There were maybe one or two teams still using it, but it was very much maintenance mode stuff.