This animated stacked bar chart visualizes US suicide rates from 1979 to 2015, broken down by gender. The visualization uses D3.js (version 3.5.5) to render the bars in SVG, with a legend that highlights each gender category when hovered, and tooltips provided by d3-tip. The data comes from the Suicide_in_USA_by_Sex.csv file. The chart encodes year on the y-axis and suicide count on the x-axis, with the two gender layers stacked to show the proportional contribution of each.