'While estimates vary, public housing represents roughly 2 per cent of Portugal’s housing stock and between 1 and 3 per cent of all homes in Spain — below the EU average of 7.5 per cent and far off France’s 14 per cent and nearly 17 per cent in the UK.'

https://www.ft.com/content/abd093f1-0a36-4989-bd38-e7cc3ea6bfca