This line chart depicts the number of passing candidates per year, showing overall trends in graduation counts over time. The visualization uses D3.js v4 with SVG rendering, where a red line is drawn using the `d3.line` generator. Data is loaded from a CSV file via `d3.csv`, with the x-axis scaled by `d3.scaleTime` for years and the y-axis using `d3.scaleLinear` for candidate counts. Axis labels are manually positioned, and axes are rendered with `d3.axisBottom` and `d3.axisLeft`.