Test
This example shows a running total increasing from 5 in 1949 to nearly 15,000 by 2019, plotted as a line chart over time. The visualization uses D3.js, importing the `select` function to set text content of a message div, while the data is loaded from a CSV file with yearly values. A dark blue background with large Ubuntu font styling frames the sparse HTML page, with the actual chart code commented out as a placeholder for future implementation.