The right to loss of earnings compensation, to which the members of the National Council are entitled, is not a payment for work. It is in the nature of the matter that this right is limited only to compensation for lost earnings for those members of the National Council who would have been entitled to such on the basis of the independent performance of a certain activity by their own work, if they had not held this office. The statutory provision is not unclear only because it does not provide answers to all questions which could arise when this right is implemented in practice. Within the framework of the system which is based on the concept that members of the National Council as non-professional officials do not receive payment for their work, it cannot be alleged that there exists unjustified differentiation between them if they all have, under the same conditions, the right to compensation for loss of earnings. Therefore, there is no differentiation between the members of the National Council.