This scatter plot visualizes average rural education index values across different years, using data from the All India Index February 2016 dataset. The code loads CSV data via `d3.csv`, aggregates it by year using a reduce operation, and renders circles with SVG. It employs `d3.scaleLinear` for positioning, `d3.extent` for the x-domain, and `d3.axisBottom` and `d3.axisLeft` for chart axes. The visualization is built with D3 v7 and renders at full viewport size.