This visualization shows annual trends in average asking prices for new and used recreational vehicles (RVs) from 2013 to 2016, using two smooth lines over a time-based X-axis and a linear Y-axis. The blue line represents new RVs, while the orange line tracks used RVs, with both datasets drawn from a local CSV file. Built with D3 v4, the code uses `d3.csv` to load the data, `d3.scaleTime` and `d3.scaleLinear` for axes, and `d3.line` with a basis curve to render the paths. Gridlines and axis ticks are styled via CSS, and the SVG output is fixed at 960 by 500 pixels.