docs: private void writeImages() {
  		for (ValueMap gv : this.valueMaps) {
  			gv.writeImage();
  		}
  
  		try (PrintStream out = new PrintStream(
  				ExampleHelpers.openExampleFileOuputStream("map-site-count.csv"))) {
  			out.println("Site key,Number of geo items");
  			out.println("wikidata total," + this.count);
  			for (Entry<String, Integer> entry : this.siteCounts.entrySet()) {
  				out.println(entry.getKey() + "," + entry.getValue());
  			}
  		} catch (IOException e) {
  			e.printStackTrace();
  		}
  	}