I'm not sure where one can find stats about "general" users, but
stats on 22K nodes do show a spread of versions.
You must refer to network's statistics. If so, you can check this website:
https://bitcointicker.co/networkstats/ or the one that promise444c5 refers to below:
If, on the other hand, you want to check statistics on your node's operations, a very cool project is
https://statoshi.info/, which is implemented by Jameson Lopp.
There is a great amount of cool stuff to see there.