There were actually more Po-2/U2 built than Il-2 and Il-10 counted together.
You know, you could be right, Denniss, but actual figures have never been released for either type, so there's a bit of conjecture as to which one was built in larger numbers. I have read - and this could very well be wrong - that Sturmovik production was in excess of 35,000, where as Po-2/U-2 production was around 33,000. If you can produce accurate figures and their source (important), that would be a great help.