general, 88.7% of children do housework at home. Their number increases with the age of the child and vary from 67.8% for children under 5 years to 97.2% for children under 17. 317 For most of the cases, the children work in hazardous conditions. Child labourers work an average of 23.6 hours per week. Among them, 90.1% are forced to labour which should be prohibited and 69.3% do hazardous works that is to say 30.7% and 23.6% of the total number of children. Works that should be prohibited including hazardous works constitute the forms of works prohibited by the texts in the context of child labour. Only 3.3% of children do light works considered as activities accepted both morally and socially. 318 According to the study carried out in the three markets of Dantokpa, Ouando and Arzèkè, children aged from 4 to 17 do works in the markets in Beniniv[8]. They work and are exploited in various sectors and suffer several abuses. Table N° 18: Distribution of child labourers by age Market Age Dantokpa Number 5 to 9 Ouando % Size Arzéké % Size Total % Size % 620 13.3 296 13.8 112 10.6 1,028 13.0 10 to 13 1859 39.7 988 46.0 373 35.3 3,220 40.9 14 to 17 2181 46.6 865 40.3 569 53.9 3,615 45.9 17 0.4 0 0.0 2 0.2 19 0.2 4677 100.0 2149 100.0 1056 100.0 7,882 100.0 Not précised Total Average age 13.4 13.1 14.4 13.5 Average age 14.0 13.0 15.0 14.0 Minimum age 6 6 7 6 Maximum age 17 17 17 17 Source: INSAE, REM - March 2013 Table N° 19: Distribution of child labourers by line of activity