This bar chart displays monthly head counts from January 2013 through February 2014. The visualization uses D3 v5 with an SVG rendering approach, loading data from a CSV file. The code employs `d3.scaleLinear` for the x-axis, `d3.scaleBand` for the categorical y-axis, and `d3.axisLeft` and `d3.axisBottom` to generate axes. The bars are styled with a steelblue fill, and the chart includes a title and axis label. The y-axis gridlines are customized with `tickSize` to extend across the plot area.