This line chart displays student growth rate from 1980 to 2005, plotting year on the x-axis and per capita mobile usage on the y-axis. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` generators to create the SVG path, with gridlines from tick size and rotated axis labels. Data is loaded via `csv()` from a GitHub gist, and the chart includes a title and styled axes using CSS classes.