They didn't change a bit the productivity statistics.
The problem with computers not changing the productivity statistics is one of the great mysteries economists argue about. It's very clear nowadays that there are problems on both the "statistics" and "productivity" sides of it, but the internet, web, and mobile didn't change anything.
Only if you want to add "internet, web, and mobile" before "age". Otherwise it doesn't need any change.
But that phrase is about the productivity statistics, not about computers or actual productivity.