code: public PmiDataInfo[] listMyLevelData(int level) {
          ArrayList levelData = new ArrayList();
          Iterator allData = perfData.values().iterator();
          while (allData.hasNext()) {
              PmiDataInfo dataInfo = (PmiDataInfo) allData.next();
              if (dataInfo.getLevel() == level) {
                  levelData.add(dataInfo);
              }
  
          }
          return (PmiDataInfo[]) levelData.toArray();
      }
docs: Returns the statistic with level equal to 'level'