Citation(s) from the GunPolicy.org literature library
Lakomaa, Erik. 2014 ‘Safe storage and thefts of firearms in Sweden - Results.’ European Journal of Criminology; Vol. 12 (I), p. 7. Sheffield: Sage Publications. 24 July
In 2010, there were 3,829,973 households and 622,154 gun owners in Sweden…(11)
[T]here were guns in 16 percent of Swedish households…
11) The number of registered guns and gun owners might, owing to known deficiencies in the gun registry (see note 3), be inflated. It can, however, be assumed that the errors become smaller over time as duplicates and other erroneous entries are weeded out.