This example visualizes the number of students at D.G. Ruparel College over the past ten years using an SVG bar chart rendered in React with D3 v5. Each bar represents a year, with height scaled by the student count and color mapped through a rainbow sequential scale. The chart includes dashed gridlines, reversed y-axis tick labels, and yearly annotations. The code loads CSV data via the `useData` hook and d3.csv, then applies `scaleLinear`, `scaleSequential`, and `interpolateRainbow` to encode values.