This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the World Population Prospects 2017 data. The chart renders with D3 v7 in SVG, using `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`. It customizes tick formatting with a custom function that abbreviates numbers using `format('.3s')` and replaces 'G' with 'B', while removing axis lines and gridlines via `.tickSize` and `.select('.domain').remove()`. Population values are multiplied by 1,000 from the CSV data.