Table 5 Children 0-17 år, by type of siblings living at home and county. 2001, 2005, 2006 and 2007. Per cent

5	Children¹ 0-17 år, by type of siblings² living at home and county. 2001, 2005, 2006 and 2007. Per cent

County	Children, total	Children with no siblings	Children with siblings, total	Type of sibling

County	Children, total	Children with no siblings	Children with siblings, total	Only biological siblings	Only half siblings	Only stepsiblings	Biological/half siblings	Biological/stepsiblings	half siblings and stepsiblings	Biological/half siblings and stepsiblings

2001³	1 049 842	17.3	82.7	70.5	6.6	0.3	4.8	0.3	0.2	0.1
2005	1 078 081	17.6	82.4	69.2	7.0	0.4	5.1	0.3	0.2	0.1
2006	1 082 684	17.7	82.3	69.0	7.1	0.4	5.2	0.4	0.2	0.1
2007	1 085 765	17.9	82.1	68.7	7.1	0.4	5.2	0.4	0.2	0.1

2007
Østfold	58 879	19.6	80.4	65.7	8.2	0.6	5.1	0.5	0.2	0.1
Akershus	128 367	18.2	81.8	70.6	6.3	0.4	3.8	0.4	0.2	0.1
Oslo	109 290	24.9	75.1	65.8	5.4	0.2	3.4	0.2	0.1	0.0
Hedmark	40 200	17.7	82.3	68.0	7.6	0.4	5.3	0.5	0.2	0.1
Oppland	39 510	17.2	82.8	69.9	6.9	0.4	4.7	0.4	0.2	0.1
Buskerud	55 821	19.2	80.8	68.2	7.1	0.4	4.5	0.4	0.2	0.1
Vestfold	50 823	19.0	81.0	66.5	8.3	0.6	4.7	0.5	0.3	0.1
Telemark	36 414	18.6	81.4	67.2	7.8	0.5	5.1	0.5	0.2	0.1
Aust-Agder	24 668	16.0	84.0	70.7	7.0	0.3	5.3	0.4	0.2	0.1
Vest-Agder	40 322	15.8	84.2	72.5	5.9	0.3	4.8	0.3	0.2	0.1
Rogaland	104 195	14.8	85.2	73.3	5.8	0.3	5.1	0.4	0.2	0.1
Hordaland	110 192	15.9	84.1	70.8	6.6	0.3	5.7	0.4	0.2	0.1
Sogn og Fjordane	26 005	12.2	87.8	76.1	5.3	0.2	5.9	0.2	0.2	0.1
Møre og Romsdal	57 878	14.7	85.3	70.7	7.3	0.2	6.5	0.3	0.2	0.1
Sør-Trøndelag	64 312	18.5	81.5	67.2	7.7	0.4	5.4	0.4	0.3	0.1
Nord-Trøndelag	31 095	15.2	84.8	68.1	7.9	0.5	7.2	0.5	0.3	0.2
Nordland	54 290	17.8	82.2	62.8	10.1	0.6	7.8	0.5	0.3	0.2
Troms Romsa	35 991	19.5	80.5	62.0	9.8	0.5	7.2	0.4	0.4	0.2
Finnmark Finnmárku	17 514	17.9	82.1	60.2	11.4	0.6	8.9	0.4	0.4	0.2

¹	A child is defined as any person with no partner and no child who has de jure place of usual residence in the dwelling/private household of at least one of the parents. A child is either biological or adopted. A foster child is not considered a child.
²	Siblings living at home comprises biological-, half-, and step-siblings. Biological siblings are offsprings having both parents in common. Half-siblings are offsprings having only one parent in common. Step-siblings are offsprings having no parents in common, but one of their parents are living together as married or cohabiting couples. Persons living in the same private household as their parents are regarded as living at home. A person does not have to be considered a child in the houshold to be regarded as a sibling.
³	Population and Housing Census 3 November 2001.