Registered health professionals. Year 2020 Registered Opticians-Optometrists by year and sex Units: absolute values ,Total,Men,Women, 2021,18,784,6,019,12,765, 2020,18,271,5,925,12,346, 2019,18,036,5,907,12,129, 2018,17,641,5,854,11,787, 2017,17,372,5,808,11,564, 2016,16,882,5,709,11,173, 2015,16,317,5,595,10,722, 2014,15,930,5,525,10,405, 2013,15,825,5,561,10,264, 2012,15,220,5,422,9,798, 2011,15,141,5,427,9,714, Notes: 1) Registered (affiliated) professionals in Spain at 31 December Source: General Council of the Professional Associations of Opticians-Optometrists