public String compareCountryRank(Stats previousStats)
	{
		if(previousStats == null)
			return "";
		if(previousStats.getCountryRank() < 1)
			return "";
		double delta = previousStats.getCountryRank() - getCountryRank();
		if(delta == 0D)
			return "";
		return "<font color=" + (delta >= 0 ? "green" : "red") + ">(" + getArrow(delta) + NumberFormat.getInstance(Utils.locale).format(Math.abs(delta)) + ")</font>";
	}