Abundances of Stokes V profiles with |δ a| > k as functions of k. The solid line shows the abundances derived at the locations of emergence of magnetic loops; the dashed line shows the ones derived from the complete quiet-Sun data set of all the time sequences when considering the profiles with max(| V|) > 0.006 (consistent with Section 3). The dotted vertical line marks the threshold value here used to evaluate the abundances, i.e., k = 0.3.