Table 5 Children 0-17 år, by type of siblings living at home and county. 2001, 2005, 2006, 2007, 2008 and 2009. Per cent

5 Children¹ 0-17 år, by type of siblings² living at home and county. 2001, 2005, 2006, 2007, 2008 and 2009. 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
2008	1 088 716	18.2	81.8	68.5	7.1	0.4	5.2	0.4	0.2	0.1
2009	1 092 727	18.4	81.6	68.2	7.1	0.4	5.2	0.4	0.2	0.1

2009
Østfold	59 423	20.2	79.8	65.2	8.2	0.6	5.0	0.4	0.2	0.1
Akershus	130 668	18.4	81.6	70.6	6.1	0.5	3.7	0.4	0.2	0.1
Oslo	113 969	24.8	75.2	65.8	5.3	0.2	3.6	0.1	0.1	0.0
Hedmark	39 685	18.6	81.4	67.0	7.7	0.5	5.2	0.5	0.2	0.1
Oppland	38 970	17.9	82.1	68.9	7.1	0.5	4.9	0.4	0.2	0.1
Buskerud	56 598	19.2	80.8	68.0	7.2	0.4	4.5	0.4	0.2	0.1
Vestfold	51 089	19.5	80.5	66.1	8.2	0.5	4.7	0.5	0.3	0.1
Telemark	36 018	19.1	80.9	66.5	7.9	0.6	5.1	0.5	0.3	0.1
Aust-Agder	24 933	17.0	83.0	69.7	7.0	0.4	5.2	0.4	0.2	0.1
Vest-Agder	40 806	16.0	84.0	71.9	6.4	0.3	4.8	0.3	0.2	0.1
Rogaland	105 758	15.4	84.6	72.6	6.0	0.3	5.1	0.3	0.2	0.1
Hordaland	110 706	16.5	83.5	70.4	6.6	0.3	5.5	0.4	0.2	0.1
Sogn og Fjordane	25 632	12.5	87.5	75.5	5.3	0.2	5.9	0.3	0.2	0.1
Møre og Romsdal	57 499	15.3	84.7	69.8	7.3	0.3	6.6	0.3	0.2	0.1
Sør-Trøndelag	64 607	19.2	80.8	66.8	7.7	0.5	5.1	0.4	0.2	0.1
Nord-Trøndelag	30 742	15.9	84.1	67.4	8.0	0.5	7.2	0.5	0.3	0.2
Nordland	53 104	18.5	81.5	62.0	10.0	0.7	7.7	0.5	0.4	0.2
Troms Romsa	35 579	19.9	80.1	61.3	9.9	0.5	7.4	0.4	0.4	0.2
Finnmark Finnmárku	16 939	18.5	81.5	59.8	11.3	0.6	8.9	0.3	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.