No unfortunately there is not complete data, not for my country at least because we only keep track of immigrants in the first two generations, then they are co

No unfortunately there is not complete data, not for my country at least because we only keep track of immigrants in the first two generations, then they are considered "danish". All though new evidence suggests that 3rd generation is much more religious, criminal etc. though I have seen no statistics about how many children 3rd generation "non western" immigrants have. You can read all about the fertility rate and population growth in Denmark in this PDF: http://www.dst.dk/Site/Dst/Udgivelser/GetPubFile.aspx?id=19004&sid=indv http://www.dst.dk/Site/Dst/Udgivelser/GetPubFile.aspx?id=190... This is official danish statistics, if it doesn't change, we will be a muslim country in a century or so. (Keep in mind that the PDF is pre-refugee crisis)