With this thread in mind, I quickly toured my shop. I think the USA wins, followed closely by Taiwan. They are clearly far ahead of any other country. Taiwan is on most of my tools, just not a couple of the most expensive (Unisaw, Oneida).
It's a close race for 3rd between Germany and Canada (my Veritas and Festool investments are similar so far). I thought my Bosch's would give the edge to Germany, but they just added to the USA tally. The Fein vac ... Italy. The only China I could find was my Delta DP (I'll try not to hold that piece of junk against China).
Some quick back of the envelope calculations (based on $)
1. USA 38%
2. Taiwan 29%
3. Germany/Canada (tie) 13% ea.
5. Italy/China (tie) <3% ea.
Taiwan is the clear leader in number of tools, with probably 50%. The US would drop significantly as there are a limited number, but all good expensive stuff
I'm sure if I thoroughly went through all my tools the percentages would change and ties would break, but this is probably pretty close.