You are simply spewing fake news.   None of the figures you have quoted are taken from, you know, reality.  

By the way, nationally, from 2013 to 2016, the Immigration Review Board had an average annual release rate of 18 per cent.  People appearing for detention review hearings at the IRB are non-Canadians who have been arrested by the CBSA for an immigration matter.  When taken into custody for an immigration infraction, CBSA can detain non-citizens pending a decision on whether they are allowed to remain in Canada.