69It is also apparent from the case-law that, for a mark to have acquired distinctiveness through use, it is necessary that at least a significant proportion of the relevant public, by virtue of that mark, identifies the goods or services concerned as originating from a particular undertaking. However, the circumstances in which that requirement for acquisition of distinctive character through use may be regarded as satisfied cannot be established solely by reference to general, abstract data such as predetermined percentages (judgments in Presentation of part of a chuck, paragraph 66 above, EU:T:2010:153, paragraph 39, and Shape of a handbag, paragraph 66 above, EU:T:2013:148, paragraph 75).