This example visualizes year-wise Apple sales data as a single line chart, emphasizing the trend in revenue over time. The chart uses time-scaled x-axis for the year data and a linear y-axis for sales figures. Built with React and D3 v5, it leverages `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` APIs to render the SVG. The data is loaded from a CSV file via `csv()`, parsed with `d3.timeParse`, and styled with custom CSS for grid lines and labels.