Sankey from Scientific Research

The relative size of each category in 2016 corresponds to the ratio of the numbers of unique users in this category to the left category (Fig. 1 ). The shifts among categories over time are proportional to the fraction of users that were classified in 2016 and in 2020 in the two involved categories. Overall, 14% of the users present in 2020 persisted from the 2016 dataset.

DOI