I propose to take Questions Nos. 120 to 123, inclusive, together.
I can advise the Deputy that according to the most recent snapshot of the prison population taken on 31 January 2015 there were 734 prisoners in custody aged 18-24, of these 620 prisoners were sentenced.
A detailed breakdown per institution is set out in the tables below.
The Irish Prison Service does not collate annual costs associated with specific age groups of prisoners. However, the Prison Service does calculate the average annual cost of an available staffed prison space. For 2013, the latest year for which a figure is available, the cost was €65,542.
Once finalised, the 2014 figures will be published on the Irish Prison Service website.