Credit: Gene Page/AMC Photo: Tara, Lilly, and Meghan Chambler Look Frightened on The Walking Dead Season 4, Episode 7: “Dead Weight”

The Walking Dead Season 1 entered this world with an impressive 5.35 million viewers and a 2.7 rating in the coveted 18-49 demographic. That was great for AMC. Fast-forward from 2010 to 2013 and Season 4 arrived with 16.11 million viewers and an 8.2 rating in the 18-49 demo. That's totes McGoats insane. Every season the ratings go up and it's hard to even say how high it could go.

Vulture took a look at 2013's TV ratings, and the report is filled with back-pats for The Walking Dead. Here are some of the TWD highlights.

Cable had a big year in general, and five of the top 25 shows for viewers under 50 were on cable. The Walking Dead had the No. 1 show in all of TV for viewers 18 to 49. That’s the advertiser sweet spot and it’s kind of amazing that a cable show in its fourth year beat everyone.

Vulture added that the demographic most likely to make cable shows a hit is men under 35. So that’s an interesting bit of trivia, and five of the top 10 shows in that demo were also on cable, led by — what else — The Walking Dead. Breaking Bad followed at No. 2, with Duck Dynasty at No. 3, South Park at No. 6, and Game of Thrones at No. 9.

But TWD is so popular it even made the top 10 list for women ages 25-54, who seem to be more likely to watch network shows instead of cable. As Vulture noted, the only cable show on that demo’s top 10 list is The Walking Dead, which just scraped by at No. 10. The most popular shows for that 25-54 female demo are The Big Bang Theory and Grey’s Anatomy, with The Voice, NCIS, and Scandal also making the top 10 cut. We knew TWD was popular with women — we are some of them! — but it’s impressive to see how many people of both genders and all ages watch and love the show.

TWD is also doing great when it comes to video on demand. Vulture got an advance look at a report Comcast is going to release later this week on its top Xfinity on Demand shows. Downton Abbey was the most-watched show for that, but TWD was in the top five. There were probably a lot of fans who felt compelled to watch Downton on demand because they had to watch TWD live. Sunday nights are cutthroat and apparently we know who’s winning.

Long story short, The Walking Dead is awesome. Everyone watches it. It rules the ratings. You knew that, but it’s still cool to see the numbers grow every season. Turns out, zombies are the great equalizer. How ironic, if they could bring us world peace.

The Walking Dead Season 4 returns on Sunday, February 9 at 9 p.m. ET on AMC.

Sources: Vulture, TV by the Numbers