By comparing the transmission rates of the articulatory features under similar listening conditions, it thus becomes possible to determine their relative prominence for a given population of listeners.
He told listeners that the prison population had dropped by about 8,000 people, or 11percentt of the total, over the last five years.
But making money was never easy in the small market, which has about a million potential listeners, including a seasonal population of 130,000 students at colleges in the area.
Its ten-year-old Radio Okapi, run in tandem with the Fondation Hirondelle, a Swiss NGO that promotes free media, has 14m daily listeners, a fifth of the population.
Arbitron, a New York-based company that tracks radio listeners, found in a March 2005 study conducted with Edison Media Research that more than 20 million people in America, about 7percentt of the population, had listened to online radio in the previous week.
The continuing build-up of listeners to DAB digital radio services - both commercial and BBC - is also impressive, with the weekly reach (proportion of the population) who now listen to digital radio up to a new record high of 28.4%.
The estimated global audience at that moment was 450 million listeners, out of a then estimated world population of 3.631 billion people.
Significantly, the research company AudienceNet-produced survey found that 2/3 of "the broadly representative sample of the UK adult population" consider themselves multi-channel listeners.
Discussing those airstrikes, international studies professor and author Vijay Prashad told Amy Goodman on Democracy Now! that the weekend's airstrikes took out the electricity grid and clinics, and reminded listeners that Raqqa still has a civilian population of more than 200,000.
Radio Nepal has the country's largest listener audience, with over 70 per cent of the 27.5 million population.
