TV ratings: Latest GOP debate fetches 18M viewers for CNN

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Despite Personal Attacks, A Debate Broke Out Last Night

Tuesday's debate was bound to be an especially curious one for cable news. Yes, audiences have been declining since August and September's gargantuan hauls, but the last two GOP showdowns aired on networks with smaller core audiences and in fewer homes. So, as many expected, this fifth arena brawl among Republican frontrunners ranked somewhere in the middle.

See more from the debate in Las Vegas:

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TV ratings: Latest GOP debate fetches 18M viewers for CNN
Republican presidential candidate businesswoman Carly Fiorina (R) gestures as Florida Sen. Marco Rubio looks on during in the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate Kentucky Sen. Rand Paul gestures during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate former Florida Gov. Jeb Bush speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate, businessman Donald Trump, speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate, retired neurosurgeon Ben Carson, speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidate U.S. Sen. Rand Paul (R-KY) (R) speaks as New Jersey Gov. Chris Christie listens during the CNN Republican presidential debate on December 15, 2015 in Las Vegas, Nevada. This is the last GOP debate of the year, with U.S. Sen. Ted Cruz (R-TX) gaining in the polls in Iowa and other early voting states and Donald Trump rising in national polls. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidate businesswoman Carly Fiorina speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidate Donald Trump is introduced during the CNN presidential debate at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. Thirteen Republican presidential candidates are participating in the fifth set of Republican presidential debates. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidates (L-R) Ben Carson, Donald Trump and Sen. Ted Cruz (R-TX) stand on stage as they are introduced during the CNN presidential debate at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. Thirteen Republican presidential candidates are participating in the fifth set of Republican presidential debates. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidate U.S. Sen. Ted Cruz (R-TX) speaks during the CNN Republican presidential debate on December 15, 2015 in Las Vegas, Nevada. This is the last GOP debate of the year, with U.S. Sen. Ted Cruz (R-TX) gaining in the polls in Iowa and other early voting states and Donald Trump rising in national polls. (Photo by Justin Sullivan/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidate U.S. Sen. Rand Paul (R-KY) speaks during the CNN Republican presidential debate on December 15, 2015 in Las Vegas, Nevada. This is the last GOP debate of the year, with U.S. Sen. Ted Cruz (R-TX) gaining in the polls in Iowa and other early voting states and Donald Trump rising in national polls. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidate Ohio Governor John Kasich gestures as he speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate businesswoman Carly Fiorina speaks during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidate U.S. Sen. Marco Rubio (R-FL) waves as he walks onstage during the CNN Republican presidential debate on December 15, 2015 in Las Vegas, Nevada. This is the last GOP debate of the year, with U.S. Sen. Ted Cruz (R-TX) gaining in the polls in Iowa and other early voting states and Donald Trump rising in national polls. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidate Texas Sen. Ted Cruz (L) shakes hands with former Gov. Florida Jeb Bush before the start of the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidates Florida Sen. Marco Rubio greets retired neurosurgeon Ben Carson before the start of the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO / ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LAS VEGAS, NV - DECEMBER 15: Republican presidential candidates Donald Trump (L) and Sen. Ted Cruz (R-TX) stand on stage as they are introduced during the CNN presidential debate at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. Thirteen Republican presidential candidates are participating in the fifth set of Republican presidential debates. (Photo by Ethan Miller/Getty Images)
2016 Republican presidential candidates Senator Marco Rubio, a Republican from Florida, from left, Ben Carson, retired neurosurgeon, Donald Trump, president and chief executive of Trump Organization Inc., Senator Ted Cruz, a Republican from Texas, and Jeb Bush, former governor of Florida, listen to the U.S. National Anthem during the Republican presidential candidate debate at The Venetian in Las Vegas, Nevada, U.S., on Tuesday, Dec. 15, 2015. With less than two months remaining before the Feb. 1 Iowa caucuses and the Feb. 9 New Hampshire primary, middle-of-the-pack candidates hoping for a late surge in the polls have little choice but to come out swinging in tonight's fifth Republican debate. Photographer: Ruth Fremson/Pool via Bloomberg
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Per Nielsen, the fifth GOP debate averaged 18 million total viewers for CNN, making it the third most watched presidential primary debate ever. In the 25-54 demo, the debate averaged 5.6 million viewers. The debate was the second most watched program in CNN's history, after CNN's September GOP debate.

Data curated by InsideGov

And while the ratings for Wednesday night's showdown don't match CNN's first GOP face-off, or the high bar set by Fox News Channel in August, it proves that even with declining viewership, ratings for this debate cycle are still worlds ahead of those in recent memory. For those who don't have the numbers (all records for their respective networks) seared into their brains, here's how this debate stacks up against the first four:

August: 24 million (FNC)
September: 23 million (CNN)
October: 14 million (CNBC)
November: 13.5 million (FBN)
December: 18 million (CNN)

Data curated by InsideGov

The comparisons to the last election remain staggering. A Dec. 15 GOP showdown in 2011 only averaged 6.7 million viewers and still ranked as the most-watched cable news telecast that year.

It's a good sign for programmers still champing at the bit to put the Republicans (most notably Donald Trump) on live TV. Fox Business Network just announced another debate for January, the sixth of the planned 11 on deck. We're not even half-way to the end.

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