41In that context, it is for the national court to assess to what extent the statistical evidence adduced before it is valid and whether it can be taken into account, that is to say, whether, for example, it illustrates purely fortuitous or short-term phenomena, and whether it is sufficiently significant (judgment of 21 January 2021, INSS, C‑843/19, EU:C:2021:55, paragraph 27).
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