The percentage of dwellings occupied (or any spatial unit) is not defined.
Standard 211 requests the percentage of multifamily dwellings that are occupied.
Since the spatial unit is a complex type, this will be a new element in the complex type.
The new element name will be SpatialUnitOccupiedPercentage similar to the FloorAreaPercentage.
//element(*,auc:BuildingType)/auc:SpatialUnits/auc:SpatialUnit/auc:SpatialUnitOccupiedPercentage
n/a