This example shows a reusable scatter plot that displays sales figures over time, with each circle representing a data point. It uses D3.js version 7 to render the visualization as SVG elements, with a band scale on the x-axis for categorical years and a linear scale on the y-axis for continuous sales values. The code leverages `scaleBand`, `scaleLinear`, `axisBottom`, and `axisLeft` to construct the axes, while interactive tooltips appear on mouseover using D3 event handlers. Data is loaded from a CSV file using `d3.csv`, and the plot includes animated transitions for tooltip visibility.