This visualization displays electronic sales data over time, plotting total sales against years as a single black line on a skyblue background. The chart uses D3 v5 APIs, including `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line`, to render an SVG with labeled axes and gridlines. Data is loaded from a CSV file via `csv()`, with dates parsed using `d3.timeParse`.