This radial bar chart compares data across Chinese provinces, plotting two series per category as concentric arcs. The green outer bars show “OurData” values, while red inner bars represent “ActualData” for each province, with labels rotated around the circle for readability. Built with D3 v4, it uses `d3.scaleBand` for the angular axis, `d3.scaleRadial` for the radius, and `d3.arc` to generate the SVG paths. The data originates from a local file with province names and paired value/rate fields.