This small-multiple line chart displays marijuana usage rates per 1000 people for ages 18–25 across US states, using data from the CORGIS dataset. Each state’s trend line is rendered in its own SVG cell, colored via a d3.scaleOrdinal palette, with a d3-legend color threshold legend. The visualization uses d3.group to separate data by state, d3.line to create paths, and d3.axisBottom and d3.axisLeft for axes, with a title overlaid in HTML.