In a study of Instagram mentions from March 2015, researchers at have concluded that 82.04% of all drug-related posts for Marley Fest were about marijuana. A breakthrough, if you’re unaware of who Bob Marley was and what Marley Fest is and generally lack a knowledge of genre’s like reggae and hip-hop.

Marley Fest crushed the competition in terms of pot use. Second place Camp Bisco (25.11%) and Bonnaroo (25.05%) weren’t quite as weed-friendly. There’s nothing shocking about the findings, except that someone actually tried to get scientific on Instagram.

It’s also worth noting that Marley Fest was the drugiest, overall, of the the 15 festivals included in the study.

Below, you’ll find a complete rundown which festivals are most popular for which drugs, based on Instagram posts:

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