1. Helsinki Collegium for Advanced Studies, University of Helsinki , 00014 Helsinki , Finland
2. Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki , 00014 Helsinki , Finland
3. Max-Planck Institute for Demographic Research , 18057 Rostock , Germany
4. Population Research Institute, Väestöliitto , 00101 Helsinki , Finland
5. Institute of Criminology and Legal Policy, University of Helsinki , 00014 Helsinki , Finland
6. Kela, the Social Insurance Institution of Finland , 00056 Helsinki , Finland