This dotplot visualizes population sizes for ten countries as individual circles along a linear scale, with country names on the y-axis. The chart uses `d3.scaleLinear` for the x-axis and `d3.scalePoint` for y positioning, with axes generated via `d3.axisBottom` and `d3.axisLeft`. Data loads from a CSV using `d3.csv`, with population values converted to numbers. The SVG rendering applies a steelblue fill and light gray gridlines, with tick labels formatted using D3’s `format` method.