This area chart visualizes the Consumer Price Index (CPI) over time, using a semi-transparent steel blue fill to emphasize trends. The chart is generated with D3.js, employing `d3.area` to build the shape, `d3.scaleLinear` for the axes, and `d3.axisBottom` and `d3.axisLeft` for ticks. Data is loaded from a CSV via `d3.csv`. The SVG rendering fills the entire viewport, and axis labels use the 'Share Tech' font.