This visualization displays ratings trends for over 100 countries across time, with each country represented as a colored line. Users can examine the data through a focus+context interface, where a main chart shows the detailed view and a smaller brushable timeline allows zooming and panning. The visualization uses d3.svg.line with basis interpolation to create smooth curves, and d3.svg.axis for both the main and context x-axes. A d3.svg.brush enables the range selection in the bottom context area. The data originates from a TSV file, rendered as SVG with animation support.