This pie chart displays the top 10 countries by GDP per capita in 2007, using a donut-style presentation with a color-coded legend. The visualization loads data from a CSV file via `d3.csv` and renders SVG paths using `d3.pie` and `d3.arc`. It employs `d3.scaleOrdinal` for color assignment and `d3.format` to display percentage values and abbreviated monetary figures in the legend.