3.3 Detention centres for illegal immigrants (mainland France). Theoretical capacity, number of committals, average duration of detention, outcome of detention Source: CICI annual reports, Senate (in italics, please see note). Average duration of detention (in days) Prisoners removed, excluding voluntary returns % removals/committals 64% 5.6 2004 944 30,043 73% 8.5 2005 1,016 29,257 83% 10.2 2006 1,380 32,817 74% 9.9 16,909 52% 2007 1,691 35,246 76% 10.5 15,170 43% 2008 1,515 34,592 68% 10.3 14,411 42% 2009 1,574 30,270 60% 10.2 40% 2010 1,566 27,401 55% 10.0 36% 2011 1,726 24,544 478 46.7% 8.7 40% 2012 1,672 23,394 98 50.5% 11 47% 2013 1571 24,176 41 48.3% 11.9 41% 2014 1571 25,018 42 52.7% 12.1 - Accompanying minors placed in CRA 28,155 2002 Number of committals 775 Theoretical capacity 2003 Year Average occupancy rate Field: Mainland France 25,131 Note: the annual reports of the CICI from 2003 to 2014 allow the first five columns of the table to be presented. The column for accompanying minors was not present before 2011. The last two columns relating to the result of placing and holding in administrative detention centres do not come from the same source. A report of the Senate Finance Committee dated 3 July 2009, following up on the task carried out by the Cour des Comptes, described, for 2006-2008, the number of people in detention who were finally sent back, excluding voluntary returns. The proportion with respect to the number of committals can therefore be calculated (last column). The 7th CICI report dated March 2011 then provided this proportion for 2009 (page 77). The following report gave a rate of 42% for CRAs 145