Xml data as history of records SQL Server

I have one xml column in sql server where I store actual value and immediate previous value of attributes

<attribute name="Name">
      <actuals>
          <element isPreferred="true" name="FirstName">Name 2</element>
          <element isPreferred="false" name="LastName">N2</element>
       </actuals>
      <previous>
          <element isPreferred="true" name="FirstName">Name 1</element>
          <element isPreferred="false" name="LastName">N1</element>
      </previous>
</attribute>

How can I show the history of attribute like

------------------------------------
Attribute | New Value | OldValue
------------------------------------
First Name| Name2     | Name1
Last Name | N2        | N1
------------------------------------