Фильтрация значений Cpc Bid в репорте

Здравствуйте. 
Качаю отчёт ADGROUP_PERFORMANCE_REPORT.

Фильтрую его по нескольким Predicates:
array('AdGroupStatus', 'EQUALS', 'ENABLED')
array('CampaignId', 'IN', $campaigns_ids)
(с таким фильтром работает)
Так же в данном отчёте есть следующее поле: 

CpcBid

Cost per click bid. Values can be one of: a) a money amount in micros, b) "auto: x" or "auto" if AdWords is automatically setting the bid via the chosen bidding strategy, or c) "--" if no CPC bid applies to the row. Type Money Display Name Default max. CPC XML Attribute defaultMaxCPC Behavior Attribute Filterable True Supports Zero Impressions True

Вопрос: как мне отфильтровать это значение, чтоб мне вернулись только значения(цифровые), тоесть пункт a) ?
Так не выходит: 
array('CpcBid', 'NOT_IN', array('--', 'auto', 'auto:x'))

Parameters:

__rdxml: <?xml version="1.0"?>

<reportDefinition>

  <selector>

    <fields>AdGroupId</fields>

    <fields>AdGroupStatus</fields>

    <fields>AveragePosition</fields>

    <fields>CpcBid</fields>

    <fields>CampaignId</fields>

    <predicates>

      <field>AdGroupStatus</field>

      <operator>EQUALS</operator>

      <values>ENABLED</values>

    </predicates>

    <predicates>

      <field>CampaignId</field>

      <operator>IN</operator>

      <values>#</values>

      <values>#</values>

      <values>#</values>

      <values>#</values>

      <values>#</values>

    </predicates>

    <predicates>

      <field>CpcBid</field>

      <operator>NOT_IN</operator>

      <values>--</values>

      <values>auto</values>

      <values>auto:x</values>

    </predicates>

    <dateRange>

      <min>2016-02-05</min>

      <max>2016-02-05</max>

    </dateRange>

  </selector>

  <reportName>56b48d941d9e6</reportName>

  <reportType>ADGROUP_PERFORMANCE_REPORT</reportType>

  <dateRangeType>CUSTOM_DATE</dateRangeType>

  <downloadFormat>XML</downloadFormat>

  <includeZeroImpressions>false</includeZeroImpressions>

</reportDefinition>

Response Code: 400

Error Message: Report download failed. Underlying errors are 

Type = 'SelectorError.INVALID_PREDICATE_VALUE', Trigger = '--', FieldPath = 'selector'. Type = 'SelectorError.INVALID_PREDICATE_VALUE', Trigger = 'auto', FieldPath = 'selector'. Type = 'SelectorError.INVALID_PREDICATE_VALUE', Trigger = 'auto:x', FieldPath = 'selector'. 

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