anchor.diff:              ? 0
               : countWithOrWithoutCustomers(highPrioritizedIssuesClosed,
                   onlyCustomers: opts.onlyCustomers);
  -        meanUntilClosed[p] = meanDurationWithOrWithoutCustomers(
  -            highPrioritizedIssuesClosed,
  -            onlyCustomers: opts.onlyCustomers);
  -        meanOpenClosed[p] = meanDurationWithOrWithoutCustomers(
  -            highPrioritizedIssuesOpened,
  -            onlyCustomers: opts.onlyCustomers);
  +        meanUntilClosed[p] = meanComputerUntilClosed
  +            .meanDurationWithOrWithoutCustomers(highPrioritizedIssuesClosed,
  +                onlyCustomers: opts.onlyCustomers);
  +        meanOpenClosed[p] = meanComputerOpenClosed
  +            .meanDurationWithOrWithoutCustomers(highPrioritizedIssuesOpened,
  +                onlyCustomers: opts.onlyCustomers);
         });
  +      // Compute mean over all priorities
  +
         var row = '${toStamp}';
         interestingPriorities.forEach((p) => row = '${row}\t${openCount[p]}');
         interestingPriorities.forEach((p) => row = '${row}\t${closeCount[p]}');
  
positive.code:     print('Period ending\tCreated P0s\tCreated P1s\tCreated P2s\t' +
          'Closed P0s\tClosed P1s\tClosed P2s\t' +
          'Mean hours to close all P0\tMean hours to close all P1\tMean hours to close all P2\t' +
          'Mean hours to close P0 opened this period\tMean hours to close P1 opened this period\tMean hours to close P2 opened this period');
    }
    while (current.isBefore(last)) {
      var next = current.add(Duration(days: 7));
      var fromStamp = current.toIso8601String().substring(0, 10);
      var toStamp = next.toIso8601String().substring(0, 10);
  
  
negative.code:       ..addFlag('customers',
            abbr: 'c',
            defaultsTo: false,
            help: 'Only show issues with customer labels')
        ..addOption('delta', abbr: 'd', help: 'delta between dates, default = 7');
  
      try {
        _results = _parser.parse(args);
        if (_results['help']) _printUsage();
  