This scatter plot shows the number of registered vehicles for ten countries versus their reporting year. Each circle represents a country, with hover interactions revealing the specific country name, vehicle count, and year. The visualization uses D3 v7’s `scaleLinear` for both axes, `d3.extent` for the x-domain, and `d3.axisBottom`/`axisLeft` for ticks. Data is loaded from a CSV file and rendered as SVG circles with white strokes.