According to the Annual Labour Cost Survey published by the Spanish Institute of Statistics, the total gross cost of labour in Spain was 30,653.05 euros (33,400 US dollars) per worker in 2014. Taking into account deductions from governmental grants and allowances, the average net cost of labour was 30,489.86 euros (33,240 US dollars) per worker. The statistics show that the average gross annual salary of a worker in 2014 was 22,605.79 euros (24,640 US dollars). This accounted for 73.75% of total labour costs. Mandatory social security contributions were another significant cost with employers paying, on average, 7,005 euros per worker. Other labour costs included contributions towards social benefits (380,73 euros per worker), expenses (234,62 euros per worker), severance pay (326,67 euros per worker) and professional training (99,88 euros per worker).