XML : Query in xml variable

This is my xml variable:

  $fyear =       <<<XML      <FYEAR YEAR="2015-2016">        <SDATE>2015-04-01<SDATE/>        <EDATE>2016-03-31</EDATE>        <ITYPE Name='Medicine'>          <VAT>4.5</VAT>        </ITYPE>        <ITYPE Name='Cosmetic'>          <VAT>14.5</VAT>        </ITYPE>      </FYEAR>        <FYEAR YEAR="2016-2017">        <SDATE>2016-04-01<SDATE/>        <EDATE>2017-03-31</EDATE>        <ITYPE Name='Medicine'>          <VAT>4.5</VAT>        </ITYPE>        <ITYPE Name='Cosmetic'>          <VAT>14.5</VAT>        </ITYPE>      </FYEAR>      XML;    

Now I want to show the itypes argument in a combo of particular year.