https://www.cnet.com/news/streaming-music-is-set-to-officially-take-over-the-world-this-year-ifpi/

Of all categories, streaming grew most, jumping 34 percent to more than $8.93 billion and making up 47 percent of all of the world's revenue for recorded music, the International Federation of the Phonographic Industry, or IFPI, said.  

And 2019 is sure to erase those last three percentage points to make streaming the majority: Streaming's share jumped nine points from a year earlier. Unless streaming's popularity slams into a wall -- and projections from Spotify, the biggest streaming service by subscribers, suggest that isn't likely to happen -- streaming should become the world's dominant way of listening to music by sales this year.