@Override
	public double getAverageClientWaitTime() {
		int clients = 0;
		int totalWaitTime = 0;
		for(int i = 0; i < cashiers; i++){
			for(int j = 0; j < lines[i].size(); j++){
				clients++;
				totalWaitTime += lines[i].get(j).getExpectedServiceTime();
			}
		}
		return totalWaitTime/clients;
	}