Detection Methods Over Time
Guide How to interpret this visualisation Tap to toggle
This layered area chart shows the positive roadside tests by detection stage (Stage 1 - Indicator; Stage 2 - Confirmatory; Stage 3 - Laboratory) from 2008 to 2024.
- Hover to see the year-by-year totals for each stage; the info bar below updates with exact counts.
- Click a year to lock the dashed selector line and keep that year highlighted.
- Hover near a layer to see which stage is closest to your pointer; if layers overlap, use the legend to isolate a stage.
Click to lock onto a year.
Assumption: Stage 2 has no data available for this period.