5.2 Nature of the visits (since 2008) Custody facilities, TGI cells, customs, etc. Juvenile detention centres Healthcare institutions Detention centres and facilities, waiting areas Penal institutions Tota l Unann . Sched . Unann . Sched . Unann . Sched . Unann . Sched . Unann . Sched . 2008 20 0 0 0 0 5 2 14 7 4 52 2009 69 0 5 3 6 16 18 22 24 0 163 2010 60 2 8 0 8 10 13 24 11 4 140 2011 57 1 10 1 25 14 17 15 11 0 151 2012 96 0 7 0 13 9 14 11 9 0 159 2013 81 0 12 0 13 4 28 1 1 0 140 2014 70 0 8 1 11 5 18 12 12 0 137 2015 70 2 8 1 13 21 7 20 18 0 160 2016 64 0 7 0 21 22 6 20 5 1 146 2017 62 0 5 0 17 27 0 21 15 1 148 Tota l 649 5 70 6 127 133 123 160 113 Unannounced Scheduled Custody facilities, TGI cells, customs, etc. 649 5 Juvenile detention centres Healthcare institutions 70 6 Penal institutions 127 133 123 160 10 1,396 Detention centres and facilities, TOTAL waiting areas, etc. 113 1,082 10 314 In all, 77.5% (1,082) of institutions were visited unannounced and 22.5% (314) in a scheduled manner. These percentages are to be adjusted according to the type of institution concerned. Visits conducted without prior notice thus comprise the following percentages: - 99.24% with regard to police custody facilities, court cells and customs; - 92.11% with regard to juvenile detention centres; - 91.87% with regard to detention centres for illegal immigrants, waiting areas and deportation procedures; - 48.85% with regard to healthcare institutions; - 43.46% with regard to penal institutions; This distribution between scheduled and unannounced visits varies little from one year to the next. In principle, it obeys a simple rule: - visits to complex institutions in which persons deprived of liberty can spend several years are scheduled, unless there are grounds to do otherwise, since this way, the CGLPL can benefit, as soon as it arrives, from a documentary case-file and a meeting attended by the institution's main managers; 133