I regularly get these letters, so by now it must be tens of millions! Always from Spain for some reason, since I would expect Nigeria. The last time they made the effort to change the first name to Charles or something. There are like 20 Asmis's in the world, so another 'H W' would be difficult. :)
Anyway, feel free to white-out my name and substitute yours, and go for the 8 million.