As Often As Not Meaning

Example : 1841, Charles Dickens, The Old Curiosity Shop, ch. 7:  "[T]hese old people—there's no trusting them, Fred. . . . [Y]ou can't calculate upon 'em, and even then they deceive you just as often as not."1896, Robert Louis Stevenson, "The Persons of the Tale" in Fables:  "I am a man that tries to do his duty, and makes a mess of it as often as not."1910, H. G. Wells, The History of Mr. Polly, ch. 7:  [I]f he discovered a sale where there were books he would as often as not waste half the next day in going again to acquire a job lot of them.1918, Edgar Wallace, The Man Who Knew, ch. 7:  The hall porter said that, as often as not, the flat was untenanted.2012 Oct. 24, Eamon Javers, "Spies and Co.," New York Times (retrieved 29 Oct 2013):  As often as not, the perpetrators have been other Americans — motivated not by patriotism for a foreign flag, but by simple profit.