SQL query against XML columns

Hi All

I have a SQL 2012 table, where one of the columns is an XML data type.  Below is one of the values:

<items>
  <Counter CounterName="processed" CounterValue="70" />
  <Counter CounterName="deferred" CounterValue="1" />
  <Counter CounterName="delivered" CounterValue="70" />
  <Counter CounterName="sent" CounterValue="70" />
  <Counter CounterName="click" CounterValue="2" />
  <Counter CounterName="open" CounterValue="22" />
</items>

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Question:  How can I write a query that displays all of the above as columns, such as ...  

SELECT 
   ??? as processed, 
   ??? as deferred, 
   ??? as delivered, --- etc. 
FROM mytable

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Thanks in advance.
Jim