This interactive line chart tracks the number of startups categorized as Unicorns, Exited, or Operating from 2005 to 2013, using data from findata.csv. Three colored lines, distinguished by stroke styles, show trends over time, with small circles marking each data point. Hovering over a point enlarges it, turns it orange, and displays the exact frequency value in a tooltip. Built with D3 v5, the visualization renders as SVG and uses `d3.line`, `d3.scaleTime`, `d3.scaleLinear`, `d3.axisBottom`, and `d3.axisLeft` to construct the chart and axes.