See also:
References Swedish EPA: Tresticklan National Park (http://www.internat.environ.se/index.php3?main=/documents/nature/engpark/eparkdoc/etresti.htm)
... households out of which 37.7% have children under the age of 18 living with them, 58.8% are married couples living together, 12.8% have a female householder with no husband ...