One of the priorities we try to address when the migrants arriving in Europe are registered is whether or not they already have some relatives in the EU. They might travel to the EU or undertake very dangerous trips across the sea basically for reuniting with the family. If that is the element, then actually that facilitates the process. If there is no link with any family registered, then of course it's a slightly different case.
I think the reunification element is always kept in mind specifically because of the humanitarian aspect of it and each individual country decides on the application that has the highest priority. I can't give you any kinds of specific figures on how often and how frequently it is used, and whether it is a positive bilan or not, but I know definitely that it is used very often as one of the reasons for proceeding and stepping up the process if it is linked with a family reunification.