private @NotNull StatisticsInfo getBaseStatisticsInfo(LookupElement item) {
      StatisticsInfo info = BASE_STATISTICS_INFO.get(item);
      if (info == null) {
        if (myLocation == null) {
          return StatisticsInfo.EMPTY;
        }
        BASE_STATISTICS_INFO.set(item, info = calcBaseInfo(item));
      }
      return info;
    }
private @NotNull StatisticsInfo getBaseStatisticsInfo(LookupElement item)