This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. The chart customizes D3 axes by removing the default domain lines and tick marks on the left axis, while the bottom axis uses a custom tick formatter that abbreviates numbers (e.g., converting “G” to “B”). The visualization is rendered as SVG, with the data loaded from a CSV file and population values multiplied by 1000 in the preprocessing step.