This visualization shows trends in global opioid consumption from 1980 to 2012, measured in morphine equivalence (mg/capita). The line chart displays consumption data for six medications—Fentanyl, Hydromorphone, Methadone, Morphine, Oxycodone, and Pethidine—with each line colored using d3's category10 scale. The x-axis is a time scale formatted by year, while the y-axis is linear, representing morphine-equivalent milligrams per capita. Data is sourced from the International Narcotics Control Board, with population data from the WHO. The SVG rendering uses d3.v3 to draw multi-series lines, with each series labeled directly on the right edge of the chart, and includes hover titles for medication identification. The visualization emphasizes trends in legal opioid consumption from 1980 to 2012, with values computed as morphine equivalence to standardize across different opioid types.# Global Opioid Consumption This visualization displays worldwide opioid consumption trends from 1980 to 2012, measured in morphine equivalence (mg/capita). The line chart tracks six different opioid medications—Fentanyl, Hydromorphone, Methadone, Morphine, Oxycodone, and Pethidine—over more than three decades. The dataset combines consumption information from the International Narcotics Control Board (via the University of Wisconsin's Pain & Policy Studies Group) with population data from the World Health Organization. Each medication is converted to morphine equivalence to enable direct comparison across drugs of varying potencies. Rendered as an SVG line chart using D3, the visualization uses a time scale for the x-axis and a linear scale for the y-axis. Each of the six medications is represented by a distinct colored line, with labels placed at the right edge of the chart. A category10 color scale distinguishes the medications, and a tooltip provides exact values on hover. The chart reveals the dramatic global increase in opioid consumption since the late 1990s, with notable growth in Oxycodone and Fentanyl use. This growth reflects broader trends in pain management and opioid prescription practices worldwide. Data is provided for individual opioids, expressed as morphine equivalence (ME) in milligrams per capita, and comes from the International Narcotics Control Board via the Pain & Policy Studies Group, with population data from the World Health Organization. D3.js is used to render the multi-series line chart as an SVG. The reader might notice how the categories are distinguished by color and labeled. The chart has a clear title and subtitle indicating the units. A link to the original source appears in the description.# Global Opioid Consumption This interactive line chart visualizes global opioid consumption trends from 1980 to 2012, measured in morphine equivalence (mg/capita). The visualization tracks six major opioids—Fentanyl, Hydromorphone, Methadone, Morphine, Oxycodone, and Pethidine—using color-coded lines to show consumption patterns over three decades. Data comes from the International Narcotics Control Board via the University of Wisconsin Pain & Policy Studies Group, with population data from the World Health Organization. The chart reveals how global opioid consumption has changed over time, with all medications normalized to morphine equivalence for meaningful comparison. Users can hover over individual lines to identify each medication. The visualization uses a time-based x-axis and linear y-axis to display consumption levels measured in milligrams per capita.