docs: private void addPropertyCounters(UsageStatistics usageStatistics,
  			PropertyIdValue property) {
  		if (!usageStatistics.propertyCountsMain.containsKey(property)) {
  			usageStatistics.propertyCountsMain.put(property, 0);
  			usageStatistics.propertyCountsQualifier.put(property, 0);
  			usageStatistics.propertyCountsReferences.put(property, 0);
  		}
  	}