Input (grade 12): di was formed when the German Salaried Employees' Union (DAG) merged with four unions of the German Confederation of Trade Unions (DGB) (DPG, HBV, Ã - TV, IG Medien).
Output (grade 12): di was formed when the Deutsche Angestellten Gewerkschaft (DAG) (German Salaried Employees) merged with four unions of the Deutscher Gewerkschaftsbund (DGB) (DPG, HBV, Ã - TV, IG Medien).