The Tennessee Volunteers’ fanbase ranked as the fifth best in the nation, according to USA Today’s “fan index“. The ranking is based on weekly voting, which is based on a particular theme.

This week’s theme was tailgating. Vol nation ranked fifth in the poll, which is calculated through voting and social media interaction.

Here’s USA Today’s criteria for the rankings:

The College Football Fan Index presented by Degree is an in-depth ranking of the top college football fan bases as determined through social chatter aggregation and online fan voting across weekly editorial fan-driven themes. The index, launched prior to this season, is measured based on the social activity of each school’s fan base, as well as the voting results of weekly themed polls that ask fans to determine which schools offer the best fan experience.

The Vols received 121,101 total mentions and 705 voting points. Tennessee drops three spots from its Week 2 ranking at No. 2 overall.

The index is updated each Thursday. All results throughout the season will be averaged and the nation’s top fanbase will be revealed on December 11.

This week’s theme is best colors. Upcoming themes include best stadium, best helmets and best entrances.

Tennessee is 2-0 in home games this season. The Vols saw their first season opening sell out at Neyland Stadium since 2007 during their 38-7 victory over Utah State in Week 1.