The chart displays the age distribution of deaths across various causes of illness, with each cause represented as a stacked bar segmented by age group. Users can toggle between raw death counts and normalized percentages using radio buttons. The visualization is built with D3.js, using ordinal and linear scales, stacked layout, and SVG axes. It animates transitions between the two modes with a 250-millisecond duration, and includes interactive hover effects that reduce rectangle opacity. Data is loaded from a CSV file containing cause-specific mortality counts by age bracket.