return convertTimeToBucket(lastSeen); }
  public int getLastWithdrawBucket() {    Iterator list = customerHash.values().iterator();    long lastSeen = convertBucketToTime(1);    while (list.hasNext()) {      long time = ((Long)list.next()).longValue();      if (lastSeen < time) {	lastSeen = time;      }    }    return convertTimeToBucket(lastSeen);  }