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Associated Press

The core of the NFL, of all teams, is the fanbase.

Crazy fans, sane fans, dedicated fans, casual ones—they all count.

This is part of a special series where we will be counting down the NFL's greatest franchises by a set of criteria (success, fans, star power and future).

In the first part, we named the Green Bay Packers as the most successful NFL franchise of all time. In this version, I rank each team's NFL fanbase.

The score is on a scale from 0 to 100 and will be added to the scores of the other parts of the series for the final team rankings.

One important note: The scores may seem arbitrary, but they aren't. I've covered games at every NFL stadium, going back 25 years. I've been to every NFL training camp and team complex, as well as every Super Bowl (minus one or two) going back to the early 1990s.

I've interacted with fans in stadium parking lots, social media, letters, malls, restaurants, upper decks, lower decks...everywhere. So nothing in these rankings is arbitrary. They come from decades of interacting with fans and the teams they support.

Enjoy the ranking, and if your team is lower than you expected, well, there's always next year.

All attendance figures are from 2015 and courtesy of ESPN.com.