A Sankey Diagram illustrates flows through a process; in this case, the flows of ocean-going passengers in 2022 from Source Regions to Destination Regions.
The dark blue vertical bars on the far left show the relative sizes of Source Regions, and the orange vertical bars on the right show the relative sizes of Destination Regions. The curved bands connecting the left and right side show the relative sizes of populations moving between each.
To comply with antitrust guidelines, any individual passenger flow representing 5,000 or less passengers has been removed. This removed about 179.1K passengers from the global total of 20.4M that sailed in 2022, or about 0.9%