This bar chart displays the population of ten countries in the year 2000, using horizontal bars sorted by country name. The visualization is built with React and D3 v5, using `scaleBand` for the categorical y-axis and `scaleLinear` for the numeric x-axis. Population values are parsed from a CSV file and formatted with D3's `format` function, converting values to billions. The chart includes custom axis components and uses SVG rectangles with tooltips showing the precise population for each country.