Additional Metadata

additionalMetadata
        |___element 'metadata'
              |___element 'unitList'
                    |___element 'unit'
                          |  \___attribute 'id' = 'permil'
                          |  \___attribute 'name' = 'permil'
                          |  \___attribute 'unitType' = 'dimensionless'
                          |  \___attribute 'parentSI' = 'dimensionless'
                          |  \___attribute 'multiplierToSI' = '0.001'
                          |  \___attribute 'abbreviation' = '‰'
                          |___text 'permil'