Since you asked : I've never billed an hour for my programming, so technically zero. I did spend dozens of hours, as I was starting from scratch skills-wise and using this as project to try and build some data science chops. I learned how to use pandas, xgboost, (I also wrote my own NBA projection app in the process) and a lot about optimizing performance in python. So well worth it. Tbh, I'm glad you asked because I had assumed that this was something a more experienced programmer would have been able to do before breakfast. Don't worry, though, my accountant will see to it that a minimum of that $29 is taxed.