Well, I looked at the Led Zeppelin database site you showed me a while back and looked at sets and there are only about 30 (and thats all the know times) or so times is was played over-seas. Since it was written, it was on just about on ever setlist for US tours.
http://www.ledzeppelin-database.com/geekbaseweb/songpage.aspx?songid=17&sort=0