This line chart visualizes quarterly STEM employment data from a CSV file, plotting the number of employees against quarters in 2022. An orange smoothed line shows the trend, with labeled axes for both dimensions. The code uses D3 v5 APIs including `scaleLinear`, `scaleTime`, `line`, `curveBasis`, `axisLeft`, and `axisBottom` to generate an SVG chart. Data is loaded asynchronously via `csv()` from a GitHub gist, and the chart includes gridlines, axis labels, and a title.