public Map<Integer, Integer> getStatusFrequencyOverHours(){
		Map<Integer, Integer> map = new HashMap<Integer, Integer>();
		
		for(Record record : log.getRecords()){
			Integer hour = record.getTime().getDate().get(Calendar.HOUR_OF_DAY);
			Integer number = map.get(hour);
			if(number != null){
				map.put(hour, ++number);
			} else {
				map.put(hour, 1);
			}
		}
		
		return map;
	}