"Something like fifty per cent of the population used to believe things like that," he said.
In 2005, 2.4% of the UK population used cocaine at least once, up sharply from 0.6% a decade earlier.
In 1990, 54% of the world's population used improved sanitation facilities; in 2015, the figure is 68%.
More than five hundred million people — about one in thirteen of the global population — used it daily.
As recently as 2002, less than a tenth of the world's population used the internet.
By 2013 almost 85 percent of the population used the Internet regularly.
Though it is available in 105 jails, in the third quarter of 2015 around 5,000 inmates, or just 6% of the prison population, used it regularly.
The population used in the analyses is not the same in all cases.
In December 2012, some 251 million of the European population used Facebook [23].
Meloidogyne incognita population used in this study was originally collected from field populations in Kahramanmaras.
Managers usually aim to conserve about 40% of what the natural fish population used to be.
