Swiss trade unions have gained the necessary 100,000+ signatures to require the Federal Chancery to call a referendum on a national minimum wage of 22 francs (18.2 euros) per hour. If supported by the Swiss population, this measure would raise gross monthly earnings to 4,000 francs (3,313 euros) for those in the lowest paid jobs. It is estimated that approximately 400,000 workers would be affected by such a statutory increase.