This line chart displays the number of Dublin Fire Brigade dispatches for each month in 2018, highlighting the variation in call volume across the year. The visualization uses d3.csv to load the dataset and renders an SVG with d3.scaleLinear for both axes, d3.axisLeft and d3.axisBottom for tick marks, and d3.line with curveLinear to connect the data points. The chart applies a custom margin, axis labels, and a title, with grid lines styled via CSS.