This horizontal bar chart displays the population of ten countries in the year 2000, with bars colored steelblue and tooltips showing the formatted population values. The visualization uses React for component structure and SVG for rendering, while D3.js provides the scaling and formatting utilities, including `scaleBand` for the categorical y-axis and `scaleLinear` for the continuous x-axis. Data is loaded asynchronously from a CSV file via `d3.csv` and processed to convert the population field from a string to a number. The chart includes a bottom axis with formatted tick labels (e.g., "B" for billions) and a left axis showing country names.