Projected population on 1 January (base 2021). By evolution scenarios and age groups Catalonia. 2070 Units: Number of persons. Source: Idescat. Population Projections (base 2021). Institut d'Estadística de Catalunya https://www.idescat.cat/indicadors/?id=anuals&n=10355&lang=en ,Value,Percentage (%) Low scenario,6543012,100.00 From 0 to 15 years,782614,11.96 From 16 to 64 years,3795868,58.01 From 65 years and over,1964530,30.02 Medium scenario,8705831,100.00 From 0 to 15 years,1145544,13.16 From 16 to 64 years,5004836,57.49 From 65 years and over,2555451,29.35 High scenario,10635330,100.00 From 0 to 15 years,1517745,14.27 From 16 to 64 years,5988433,56.31 From 65 years and over,3129152,29.42 Projected population on 1 January (base 2021). By age groups Spain. 2070 Units: Number of persons. Source: INE. Institut d'Estadística de Catalunya https://www.idescat.cat/indicadors/?id=anuals&n=10355&lang=en ,Value,Percentage (%) Population,50589811,100.00 From 0 to 15 years,6736328,13.32 From 16 to 64 years,29385120,58.09 From 65 years and over,14468363,28.60