code: synchronized float getAverageWaitMsecsPerHardAdmissionJob() {
      float averageWaitMsecsPerHardAdmissionJob = -1f;
      if (!hardAdmissionMillisQueue.isEmpty()) {
        long totalWait = 0;
        for (Long waitMillis : hardAdmissionMillisQueue) {
          totalWait += waitMillis;
        }
        averageWaitMsecsPerHardAdmissionJob =
          ((float) totalWait) / hardAdmissionMillisQueue.size();
      }
      return averageWaitMsecsPerHardAdmissionJob;
    }
docs: Get the average waiting msecs per hard admission job entrance.
  
  @return Average waiting msecs per hard admission job entrance