This scatter plot shows the relationship between housing prices in Australia and Belgium for each quarter from 1975 to 2012, using OECD data loaded from a GitHub Gist. Each circle represents one quarter, with its x-position determined by the Australian price and its y-position by the Belgian price. The visualization uses D3 v7’s `csv`, `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` APIs to parse the data, map it to pixel coordinates within a full-window SVG, and render the axes. Circles are appended with a fixed radius of 2 pixels.