(1) Coefficients of Variation have been calculated for the latest period as an indication of the quality of the estimates. See Guide to Quality as follows. Guide to Quality:
The Coefficient of Variation (CV) indicates the quality of an estimate, the smaller the CV value the higher the quality. The true value is likely to lie within +/- twice the CV—for example, for an estimate of 200 with a CV of 5 per cent. we would expect the population total to be within the range 180-220.
KEY Coefficient of Variation (CV) (percentage) Statistical Robustness
* 0 = CV [le]5 Estimates are considered precise.
** 5 = CV [le] 10 Estimates are considered reasonably precise.
*** 10 = CV [le] 20 Estimates are considered acceptable.
**** CV = 20 Estimates are considered too unreliable for practical purposes. Source:
Labour Force Survey/Jobcentre Plus administrative system
