Figure 2.

Yearly distributions of mentions of precipitated withdrawal (top), fentanyl and analogs (middle), and Bernese method (bottom) within our chosen six subreddits. Counts of distinct lexical variants are aggregated. For 2021, the values presented are estimates based on the number of days that had elapsed up to the day of collection (April 23; 113 days). The true count is multiplied by the fraction $\frac{365}{113}$.