Data Visualiser Streamgraph Sankey Timeline Infographic

Data visualization infographic titled "Streamgraph Topic Over Time" using a SANKEY FLOW as the dominant visual element, designed to show progress across time in a pipeline-like temporal flow. Create a wide horizontal editorial layout where the sankey/stream flow moves left to right across clearly labeled time stages in English: "2019", "2020", "2021", "2022", "2023", "2024". Each stage should have sharp vertical guide ticks and a clean baseline time axis labeled "Year" with evenly spaced tick marks, no misleading scale manipulation, and precise English labels. Use multiple flowing bands to represent plausible evolving categories, with exact English labels: "Awareness", "Trial", "Adoption", "Regular Use", "Advocacy". Show realistic illustrative values embedded subtly at each time step, for example total volume rising from 120 in 2019 to 410 in 2024, with flows visibly widening over time to communicate progress. Make the sankey stream visually dominant, with widths proportional to values and smooth transitions between stages.

Add 4 key insight callouts positioned around the chart, each with a small icon, a headline number, and a short interpretation in English: 1) icon upward arrow, headline "410", text "Illustrative total volume in 2024, up from 120 in 2019"; 2) icon lightning bolt, headline "+242%", text "Illustrative overall growth across the period"; 3) icon users/group, headline "38%", text "Regular Use becomes a larger share by 2024"; 4) icon star, headline "22%", text "Advocacy emerges as the strongest late-stage gain". Optionally add a fifth callout: icon funnel, headline "5 stages", text "Progression from awareness to advocacy shown continuously over time".

Include a compact legend in English with neon-coded categories. Use a dark mode neon palette inspired by Reuters / Economist editorial graphics: charcoal black background, deep graphite panels, electric cyan, neon magenta, acid lime, amber, and violet accents, with crisp white typography and subtle gridlines. Style should feel analytical, polished, restrained, and newsroom-grade rather than playful. Include editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout. Ensure high contrast, immaculate spacing, sharp labels, thin precise rules, and minimalist annotations.

Add a small bottom strip labeled exactly in English: "Source / Data note: Illustrative example. Figures are illustrative unless sourced data is provided." Keep this subtle and clearly separated from the main chart. Avoid fake authoritative sources, avoid watermarks, and avoid clutter. Make the search-intent concept visually clear for a "data visualiser" audience without using that phrase as decorative non-chart text.

All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.