The commercial cleaning industry is characterized by a high proportion of labour costs and a pronounced comparability and standardization of services. The statistical preconditions for the evaluation have not been ideal which is mainly due to the high proportion of part-time work and mini-jobs....

From the end of the Second World War onwards, a middle class emerged in Germany that was, by international standards, broadly based. The economic basis for this middle class was good pay and relatively low income differentiation, which was the result of collective agreement on a high coverage...

The commercial cleaning industry is characterized by a high proportion of labour costs and a pronounced comparability and standardization of services. The statistical preconditions for the evaluation have not been ideal which is mainly due to the high proportion of part-time work and mini-jobs....

"The commercial cleaning industry is characterized by a high proportion of labour costs and a pronounced comparability and standardization of services. The statistical preconditions for the evaluation have not been ideal which is mainly due to the high proportion of part-time work and mini-jobs....

The commercial cleaning industry is characterized by a high proportion of labour costs and a pronounced comparability and standardization of services. The statistical preconditions for the evaluation have not been ideal which is mainly due to the high proportion of part-time work and mini-jobs....

"The commercial cleaning industry is characterized by a high proportion of labour costs and a pronounced comparability and standardization of services. The statistical preconditions for the evaluation have not been ideal which is mainly due to the high proportion of part-time work and mini-jobs....