Total victims of the attacks on Sept. 11, 2001.
Fire Department of New York personnel killed at the World Trade Center.
Police officers killed at the WTC.
Approximate number of workers at the WTC when the planes hit.
Human remains recovered from the destruction.
Remains never matched to a victim.
Victims never identified through remains.
Number of intact bodies pulled from the rubble of the World Trade Center. Most families of victims received only body parts - or only death certificates.
Age of the youngest victim. Christine Hanson was travelling with her parents to Disneyland in California when Flight 175 was hijacked. Eight children were killed in the attacks, all of them passengers on hijacked airliners.
200People believed to have jumped of fallen from the twin towers before their collapse, according to USA Today survey, witness photographs, videos and testimony.
56 & 102 minutes was the time the burning twin towers stood.
12 seconds was all it took for them to fall.
Magnitude, on Richter scale, of the seismic impact of the north tower's collapse.
Nationalities of victims.
29.9 million ounces of silver recovered from a Bank of Nova Scotia vault below the towers.
Approximate number of search and rescue dogs deployed at the World Trade Center, Fresh Kills landfill and the Pentagon.
Days passed before Christie Whitman, the Environment Protection Agency administrator, said the air in New York was "safe to breathe."
Days passed before Governor George E. Pataki declared the fires had been extinguished.
Days passed before last piece of steel, a 58-tonne segment of column, was carted away.
Detainees at Guantanamo Bay, Cuba since 2002.
Lighters confisticated at airports in the three years they were banned.
Names on the US government's "No Fly" list.
Average government settlement for families of those killed.
Service members treated for post-traumatic stress disorder.
Minimum number of people found to have 9/11-related asthma and other lower respiratory ailments.
People found to have 9/11-related post-traumatic stress disorder and other mental illnesses.
Estimated number of children who lost a parent on 9/11.
Newborns named Osama in the United States in 2001.
Newborns named Osama from 2002 to 2009.
Percentage of Muslim Americans who believe their fellow Muslims are loyal to the United States.
Percentage who believe they have experienced racial or religious discrimination in the past years.
The year "jihadist" was added to the Merriam-Webster College Dictionary.
Feature films that were postponed or re-edited after the attacks. A Jackie Chan movie called Nosebleed, about a window-washer at the World Trade Center who foils a terrorist plot, was cancelled.
source: New Sunday Times, September 11, 2011.