Hard Numbers: Most US men not so comfortable with a woman president

391: A national effort in Colombia to remove improvised explosives has resulted in 391 municipalities now being declared mine-free. More than 700 of Colombia's 1,122 municipalities once had landmines, the result of a decades-long armed conflict between leftist guerillas, criminal factions, paramilitary groups, and the government.

13.29 million: US crude oil will average 13.29 million bpd next year, according to the Energy Information Agency, indicating that US production will have more than doubled in the past decade. This would make the US the world's largest oil producer by far, ahead of Russia and Saudi Arabia.

49: Less than half of American men say they'd feel "very comfortable" with a woman as head of government, according to a new Reykjavik Index study. More shocking, however, is that just 59 percent of American women surveyed said they'd feel comfortable with a woman at the helm.

52: Deaths from terrorism fell globally for the fourth consecutive year, decreasing by 52 percent since 2014, according to the Global Terrorism Index. Terrorism-related deaths decreased by more than 15 percent in the last year alone, with the most significant falls occurring in Iraq after the defeat of ISIS, and in Somalia after US-led airstrikes on the Al-Shabab terror group there.