AstroGamer on 04 May 2014
Going to guess based on this and the fact it's GW, SAO>50k, YW>40k, Theaterhythm>35k, Touch Detective 3 >20k. Though looking at the last Touch Detective debut, it did ... poorly so maybe it did worse
Edit: That appeared to be the last DS release. The 3DS appears to have done a lot better at around 16k on its first week and appearing to end around 70k
