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Council Regulation (EC) No 23/97 of 20 December 1996 on statistics on the level and structure of labour costs article 7 CELEX: 31997R0023 Representativeness
The reliability and comparability on a high quality level shall be attained by the use of sample sizes allowing that the relative standard error for the variable ‘hourly labour costs’ by division of NACE Rev. 1 does not exceed 3 %. |