This line chart displays flight charges over a range of years, using a time-scaled x-axis and a linear y-axis. The visualization is rendered as an SVG using D3 v5, with data loaded from an external CSV file. The code employs D3’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` generators to plot the trend. Axis labels and tick marks are configured with custom margins, and the line path is styled with a blue stroke.