This dynamic line chart visualizes U.S. electricity consumption over time, with a growing path and data points that reveal the trend as the animation progresses. The graphic is rendered as an SVG, with the chart updating by increasing a counter that shifts the visible data window. The implementation uses the `d3` library for data parsing, time formatting, and chart construction, including `scaleTime`, `scaleLinear`, and axis functions. Data is fetched from a CSV file hosted on GitHub, and the animation is driven by a `setInterval` callback.