The initial numbers are indelible: 8:46 a.m. and 9:02 a.m. Time the burning towers stood: 56 minutes and 102 minutes. Time they took to fall: 12 seconds. From there, they ripple out.

See Also: The Encyclopedia of 9/11

• Total number killed in attacks in New York: 2,753

• Number of firefighters and paramedics killed: 343

• Number of NYPD officers: 23

• Number of Port Authority police officers: 37

• Number of WTC companies in the towers that lost people: 128

• Number of employees who died in Tower One: 1,402

• Number of employees who died in Tower Two: 614

• Number of employees lost at Cantor Fitzgerald: 658

• Number of U.S. troops killed in Operation Enduring Freedom: 2,343

• Number of nations whose citizens were killed in attacks: 115

• Ratio of men to women who died: 3:1

• Age of the greatest number who died: between 35 and 39

• Bodies found "intact": 291

• Remains found: 21,906

• Number of families who got no remains: 1,717

• Estimated units of blood donated to the New York Blood Center: 36,000

• Total units of donated blood actually used: 258

• Number of people who lost a spouse or partner in the attacks: 1,609

• Estimated number of children who lost a parent: 3,051

• Percentage of Americans who knew someone hurt or killed in the attacks: 20

• FDNY retirements, January–July 2001: 274

• FDNY retirements, January–July 2002: 661

• Number of firefighters on leave for respiratory problems by January 2002: 300

• Number of funerals attended by Rudy Giuliani in 2001: 200

• Number of FDNY vehicles destroyed: 98

• Tons of debris removed from site: 1.8 million

• Days fires continued to burn after the attack: 99

• Jobs lost in New York owing to the attacks: 146,100

• Days the New York Stock Exchange was closed: 6

• Point drop in the Dow Jones industrial average when the NYSE reopened: 684.81

• Days after 9/11 that the U.S. began bombing Afghanistan: 26

• Total number of civil rights complaints reported to the Council on American-Islamic Relations nationwide from 2002 to 2008: 12,962

• Economic loss to New York in month following the attacks: $105 billion

• Estimated cost of cleanup: $600 million

• Total FEMA money spent on the emergency: $970 million

• Estimated amount donated to 9/11 charities: $1.4 billion

• Estimated amount of insurance paid worldwide related to 9/11: $40.2 billion

• Estimated amount of money needed to overhaul lower-Manhattan subways: $7.5 billion

• Amount of money granted by U.S. government to overhaul lower-Manhattan subways: $4.55 billion

• Estimated amount of money raised for funds dedicated to NYPD and FDNY families: $500 million

• Percentage of total charity money raised going to FDNY and NYPD families: 25

• Average benefit already received by each FDNY and NYPD widow: $1 million

• Percentage increase in law-school applications from 2001 to 2002: 17.9

• Percentage increase in Peace Corps applications from 2001 to 2002: 40

• Percentage increase in CIA applications from 2001 to 2002: 50

• Number of songs Clear Channel Radio considered "inappropriate" to play after 9/11: 150

• Number of mentions of 9/11 at the 2002 Oscars: 26

• Apartments in lower Manhattan eligible for asbestos cleanup: 23,000

• Number of apartments whose residents have requested cleanup and testing: 4,167

• Number of Americans who changed their 2001 holiday-travel plans from plane to train or car: 1.4 million

• Estimated number of New Yorkers suffering from post-traumatic-stress disorder as a result of 9/11: 422,000

  Updated September 2014

  See Also: The Encyclopedia of 9/11