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          <mask elevation="03 degrees"
                obs_expected="33708"
                obs_have="31158"
                obs_ratio="92.44" />
          <mask elevation="10 degrees"
                obs_expected="23596"
                obs_have="23591"
                obs_ratio="99.98" />
          <mask elevation="15 degrees"
                obs_expected="20698"
                obs_have="20698"
                obs_ratio="100.00" />
        </observations>
      </control>
    </file>
  </station>
</QC>
