This visualization shows yearly Bitcoin price data as an area chart, with the shaded region representing price values over time. The x-axis displays years using a point scale, while the y-axis uses a linear scale for price. The chart is rendered as SVG using D3 v5, employing `scalePoint`, `scaleLinear`, `area` with `curveBasis`, and `axisBottom`/`axisLeft`. Data is loaded from a CSV file via `d3.csv`, and grid lines extend across the plot area via tick sizes.