This example visualizes fruit production data for two years as a stacked bar chart using D3.js v3. The chart compares four fruit categories—Red Delicious apples, McIntosh apples, oranges, and pears—across 2006 and 2007, with each bar segment sized by its value. It uses `d3.layout.stack()` to compute stack offsets, `d3.scale.ordinal()` for the x-axis, `d3.scale.linear()` for the y-axis, and renders SVG rectangles for each segment. Mouseover events reveal a tooltip displaying the exact value, while a legend identifies each fruit category.