This line chart displays the number of flights over time from the US Airline Traffic Dataset. A light gray background rect marks the plotting area, with a black line connecting data points and circles highlighting each observation. The visualization uses D3's `scaleTime`, `scaleLinear`, and `line` functions, with axes and labels from `@curran/axis-labels`. The code imports data via `@Ljz2018/us_airline_traffic` and renders the chart into an SVG container.