The report said home ownership of insecticide-treated nets had reached fifty percent in thirteen of the thirty-five African countries with the highest cases of malaria.

VOA: special.2010.04.20

Following the heavy pollution of the beach, the local population of this starfish fell from more than a hundred and fifty to just thirteen, pushing this particular colony to the edge of extinction.

BBC: News | UK | West Wales recovering from 'environmental disaster'

Obama sent in more than fifty thousand additional troops, and, for thirteen months, Petraeus himself led the effort.

NEWYORKER: General Principles

In 1932, Yale received thirteen hundred and thirty applications, and it admitted nine hundred and fifty-nine an acceptance rate of seventy-two per cent.

NEWYORKER: Live and Learn