This scatterplot displays Swedish municipal statistics, plotting municipal tax rate against average income, with circle size encoding mean age and color representing municipalities. Users can interact with a dropdown menu to switch between different data attributes. The visualization uses D3 v5 with SVG rendering, employing d3.scaleLinear for axes and circle sizing, d3.axisBottom and d3.axisLeft for gridlines, and d3.csv to load the dataset. Circle opacity and styling are set via CSS.