There's very little production information available for the Taurus brand. What there is tends to be anecdotal by those that have been around for a while. Taurus Corporation has never made any effort that I'm aware of to make any historical information available. I'm pretty sure they've never compiled it. Taurus is an economy brand with very little collector interest so other than satisfying the occasional curiosity of owners I don't think they see the benefit of going to the effort.
You can call them and they can tell you when it was made, but as to production numbers that will be a mystery. I can tell you there weren't a whole lot of .41's made. They are not very common but I've seen a few here on there.