This chart displays annual sales of Apple mobile phones from 2009 to 2019 as a single line, with time on the x-axis and sales volume on the y-axis. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` generators within a React framework, rendering to SVG. Data is loaded from a CSV file via `d3.csv` and parsed using `d3.timeParse`. The chart includes labeled axes, grid lines, and a styled line path, with sales values formatted using D3’s `format`.