Here are some data points specific on IT. Back from 2023 until more recently, although as I said there is an uptick for 2025. For general statistics I like:
https://tradingeconomics.com/
"..The sector's share of Polish GDP and the value of exports per employee increased significantly despite the fact that at the same time the growth rate of employment slowed down. And while these changes were anticipated, this is a new situation. Until now, all three indicators have been correlated quite strongly.." - https://absl.pl/en/news/p/new-phase-growth-modern-business-s...