code: private static void addData(final Map<String, List<ViewRiksdagenPartyCoalationAgainstAnnualSummary>> map,
  			final Series series, final DataSeries dataSeries) {
  		final Set<Entry<String, List<ViewRiksdagenPartyCoalationAgainstAnnualSummary>>> entryMap = map.entrySet();
  
  		for (final Entry<String, List<ViewRiksdagenPartyCoalationAgainstAnnualSummary>> entry : entryMap) {
  			if (!entry.getValue().isEmpty()) {
  				series.addSeries(new XYseries().setLabel(entry.getKey()));
  
  				dataSeries.newSeries();
  				for (final ViewRiksdagenPartyCoalationAgainstAnnualSummary data : entry.getValue()) {
  					dataSeries.add(data.getEmbeddedId().getYear() + "-01-01", data.getTotal());
  				}
  			}
  		}
  	}
docs: Adds the data.
  
  @param map the map
  @param series the series
  @param dataSeries the data series