This bar chart displays the population of seven Costa Rican provinces, based on 2018 United Nations World Population Prospects data. It uses D3 v5 with `d3.csv` to load data, `d3.scaleLinear` for the x-axis, and `d3.scaleBand` for categorical y-axis labels. The chart renders as SVG rectangles filled with light green, with axes created via `d3.axisLeft` and `d3.axisBottom`. Population values are multiplied by 1000 in the data preprocessing step.