Ryng on 18 July 2016
So, it looks like there was a mistake with 3DS numbers, both in May and in June.
http://www.neogaf.com/forum/showpost.php?p=210466611&postcount=452
http://www.neogaf.com/forum/showpost.php?p=210469485&postcount=455
...Apparently, 3DS is >72k in May, and >100k in June...