This example demonstrates how to import a CSV file using D3.js, displaying the row and column counts from the dataset. The data contains yearly numerical values from 1880 to 2015, with each year having two entries. Using `d3.csv`, the code loads the external data file and asynchronously processes it, then updates the text content of a large `<pre>` element with the resulting statistics. The visualization showcases D3 v5’s promise-based data loading API for reading tabular data files.