The right question is how much human code can a human push now vs prior to AI.
Everything we've done in coding has been assisted.
Prior to this current generation of web applications, we had the advent of concepts like Object Orientated Programming and prior to that even C was a massive move up from Assembly and punch cards.
AI has written a lot of code. AI has written very little high velocity production code by itself (ie. for people with no coding background).
In Ruby on Rails, the concept of fast coding has been around for over 20 years, look up this concept of Scaffolding: https://www.rubyguides.com/2020/03/rails-scaffolding/
So to answer your question,
1. AI has pushed a lot of code 2. AI has pushed almost no code without the oversight of human software engineers 3. Software engineers are pushing a magnitude more code and producing more functional utility and solving more bugs than ever before
I don't know what the future holds, but I do think that this is not a new trend to use software to help humans build faster, and I don't think software has the ability to fully replace humans (yet).