not in any ways conclusive as not all listings for sale are on c24 and some listings on c24 are duplicates or not always real. However if one takes 14 references perhaps some pattern appears for limited edition pieces. Now perhaps behavior for limited edition and limited production pieces are somewhat different. However the exception clearly is the NY edition world timer, it was supposedly only sold to US clients and production at 300 is quite reasonable it would seem. Yet so many listed for sale. I would venture to guess 5131 is around the 6% mark (like the 5975). Which would mean roughly 1700-1800 produced.... anyones guess