JP Morgan alone employs a quarter of a million people.
In New York alone, about a quarter of the city's hotels are expected to be upgraded.
Put another way, Manhattan alone contributed a quarter of all money in the study.
New York State alone consumes a quarter of the nation's home-heating fuel.
Still, it has done good service – it alone provides a quarter of Victoria's base load electricity needs.
It has a national debt of nearly nine hundred billion euros, eighty per cent of its G.D.P. Interest payments alone consume a quarter of its G.D.P.
Given that in the UK alone around a quarter of the population will experience some sort of mental health problem each year, any documentary exploring the issues is a welcome addition to the debate.
In this industrious backbone of the state, which alone produces a quarter of the nation's food and 40% of its fruits and nuts, temperatures are too high, the rainfall too low, the farms too large.
In one famous study, the social scientist AnnaLee Saxenian showed that Chinese and Indian immigrants alone founded a quarter of Silicon Valley start-ups between 1980 and 1998, while a 2007 study found that a quarter of all technology and engineering start-ups between 1995 and 2005 were founded by immigrants.
But even a cursory analysis of the study's methods makes you wonder why anyone would take such a finding seriously, let alone order a Quarter Pounder With Cheese to celebrate it, as many newspaper readers no doubt promptly went out and did.
It is unclear exactly how many there were, but data supplied by the investment firm Cantor Fitzgerald, which lost 658 people in the tragedy, suggest that in that company alone about a quarter of the employees fell into this group in 2001.
