It's Friday! That's the fifth day of the work week, and, in some optimistic citizens' assumption, the first day of the weekend. However you look at it, you need some figures to think about this morning. Here are three.

56

Samuel Little, a 78-year-old who confessed a total of 90 murders to the FBI recently, is on the map. The FBI created this interactive map, which anyone can explore on its website, in the hopes of providing his victim's families with closure.

(Should you know anything about these unmatched confessions, call the FBI at 1-800-634-4097.)

78.6 years

The average life expectancy in America during 2017 according to the latest U.S. Centers for Disease Control and Prevention report, continuing a downward trend since 2014. According to the CDC, overall life expectancy is down .1 years from 2016 largely due to drug overdoses and suicides.

161

Number of top-charting songs that shoutout New York, the most of any city in the world. Celebrity Cruises ($RCL) analyzed the lyrics of top singles from the 1960's onwards and mapped out the most popular cities shouted out on the biggest hits.

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