Current detainee census: 155, from 21 countries.
Youngest: 27 or 28, Hassan bin Attash of Yemen.
Oldest captive: 66, Saifullah Paracha of Pakistan.
Captives now designated for indefinite detention, without charge or trial: 45.
Captives approved for transfer or repatriation to their homelands, some with conditions, all but one since January 2010, if not earlier: 77.
Pentagon forces assigned to detention operations: A total of 2,127, as of Nov. 6, 2013 -- fewer than 300 of them civilians, mostly contractors, and the overwhelming majority of troops from the U.S. Army. Navy prison hospital staff numbers around 137.
Total number of residents at Guantánamo on Feb. 20, 2013, by Navy base estimates: 6,171.
Cost to house one detainee a year at prison camps: $800,000 by Obama administration July 2011 estimate. $2.7 million per prisoner in a summer of 2013 Congressional Democrat crunch based on Defense Department figures.
Detainees who died in the camps: Nine. Two Saudis and a Yemeni were found dead Camp 1 June 10, 2006 in what the Southern Command calls suicides by hanging; another Saudi, was found dead in Camp 5 in May 30, 2007 in what the Southern Command calls a suicide by hanging; an Afghan man at the detention center hospital in Dec. 30, 2007 in what the Southern Command said was colon cancer; a Yemeni man in the psychiatric ward June 1, 2009 in what the Southern Command called suicide, strangled by the elastic band from underwear, according to a military autopsy; an Afghan man designated for indefinite detention collapsed Feb. 1, 2011 in a cell block after working out on an exercise machine in Camp 6 in what the Southern Command called a heart attack; and an Afghan man was found hanging from a bed sheet in a Camp 6 recreation yard on May 17, 2011 in what the the Southern Command called suicide. On Sept. 10, 2012 the military disclosed that another detainee was found dead in his Camp 5 cell two days earlier, on Sept. 8, 2012, in what Southern Command said was a suicide by overdose of drugs complicated by acute pneumonia.
Captives in camps with prostheses: Five as of Sept. 13, 2011.
Size of Navy base: 45 square miles, straddling Guantánamo Bay, from prison camp to air strip.
Prison camp commanders since 2002 opening: 13 admirals and generals.
Captives who arrived Jan. 11, 2002, to inaugurate Camp X-Ray: 20
Last known arrival: Muhammed Rahim al Afghani, described as a high-level al Qaeda captive, on March 14, 2008.
Last detainee transfer: Sudanese prisoners Ibrahim Idris and Noor Uthman Mohammed on Dec. 18.
Last detainee resettlement: Three Uighur Muslim men to Slovakia on Dec. 30, 2013. They had been held at a separate detention compound with other Uighur Muslim men who'd been ordered freed by a federal judge in 2008.
Last convict departure: Noor Uthman Mohammed of Sudan, who pleaded guilty to war crimes in exchange for a short prison sentence, on Dec. 18, 2013.
International Committee of the Red Cross visits to the detention center since it opened Jan. 11, 2002: 100. (As of Jan. 29, 2014)
Daily calorie offering to each detainee: 4,500 according to a 9/12/2011 media briefing.
Nations that have resettled cleared detainees who are not their citizens: 17: Albania, Belgium, Bermuda, Bulgaria, Cape Verde, El Salvador, France, Georgia, Germany, Hungary, Ireland, Latvia, Palau, Portugal, Slovakia, Spain, Switzerland.
Nation that has resettled the largest number of non-citizen freed detainees: Albania has taken 11 to include Uighurs, Egyptians, an Algerian, Libyan, Tunisian and Uzbek.
Largest current concentration of captives, by nationality: About 90 Yemenis.
Captives convicted by Military Commission: Eight.
Foot soldier David Hicks in a 2007 plea bargain to return home, now free in his native Australia.
Osama bin Laden driver Salim Hamdan at trial in July-August 2008, now free in his native Yemen. A civilian court vacated his conviction.
Bin Laden media aide Ali Hamza al Bahlul of Yemen at trial in November 2008, serving life in a special prison annex.
Foot soldier Ibrahim al Qosi of Sudan in an August 2010 plea bargain that returned him to his native Sudan on July 10, 2012.
Teen terrorist Omar Khadr in an October 2010 plea bargain to return to his native Canada in 2011 and serve at most seven more years there. He was repatriated on Sept. 29, 2012
Paramilitary training camp small-arms instructor Noor Uthman Mohammed on Feb. 18, 2011 in a plea bargain to return to his native Sudan by 2014, provided he testifies for the government at federal and military trials until his release.
Former CIA captive and ex-U.S. resident Majid Khan, a Pakistani, in a February 2012 plea bargain to postpone his sentencing for four years while he testifies against other fellow "high-value captives." Saudi Ahmad al Darbi, in a February 2014 plea that admitted responsibility for al-Qaida's October 2002 attack on the oil tanker Limburg, which happened while he was already at Guantánamo.
Captives currently facing a Military Commission: Six. Saudi-born Abd al Rahim al Nashiri facing a death penalty trial as alleged architect of the October 2000 suicide bombing of the USS Cole off Yemen that killed 17 US sailors. Separately, alleged mastermind Khalid Sheik Mohammed and four alleged co-conspirators in the 9/11 attacks face another death penalty trial.>
Captives an Obama Task Force designated in 2010 could go to trial: 36, five of them have already pleaded guilty in exchange for certain sentences.
Cases involving detainee rights that have gone before the U.S. Supreme Court during the War on Terror: Four.
Times the justices sided with detainees against the Bush administration: Four.
Largest captive population since detention center opened: About 660 in November 2003.
Smallest: 20 on Jan. 11, 2002.
Updated Feb 20, 2014