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          <mask elevation="03 degrees"
                obs_expected="34067"
                obs_have="29022"
                obs_ratio="85.19" />
          <mask elevation="10 degrees"
                obs_expected="29782"
                obs_have="27811"
                obs_ratio="93.38" />
          <mask elevation="15 degrees"
                obs_expected="26151"
                obs_have="25736"
                obs_ratio="98.41" />
        </observations>
      </control>
    </file>
  </station>
</QC>
