Problemas com xsl

Assuntos Gerais
#1

Oi, estou tentando listar o pais e o numero de empregados de cada pais usando um xsl, mas não estou conseguindo,

<?xml version="1.0" encoding="UTF-8"?> <employees> <employee> <FirstName>A</FirstName> <LastName>B</LastName> <Country>USA</Country> </employee> <employee> <FirstName>C</FirstName> <LastName>D</LastName> <Country>BRAZIL</Country> </employee> <employee> <FirstName>E</FirstName> <LastName>F</LastName> <Country>USA</Country> </employee> </employees>

com esse xml que achei buscando na net, mas não esta dando certo

  <xsl:for-each-group select="employees/employee"
          group-by="Country">
          <xsl:sort select="current-grouping-key()" />
        
              <xsl:value-of
                select="current-grouping-key()" />
 </xsl:for-each-group>

Alguem tem akguma sugestão? flw

#2