Total investment under the Residence Authorisations for Investment activity (ARI), as the scheme is officially known, was €874,444,320.10, against €466,259,797.63 in 2015, and 1,414 'golden visas' were issued under the programme.

In December alone, €87,482,100.72 came into the country, up 83.8% from the November total of €47,597,866.42 and up 47% from December of 2105.

Of the 2016 total, the vast majority - more than €77 million - was in the form of property purchases, the threshold for which is €500,000. Capital transfer accounted for €10.4 million.

In December 141 residence permits were issued, 131 of them for property purchases and 10 for capital transfers.

Of the 131 property purchases, four were for urban rehabilitation projects - which have a lower threshold of €250,000 - bringing the 2016 total to nine. The first such permit was issued in July and the other four in October, after new rules came into effect in September of 2015 offering special deals for urban rehabilitation and investment in science.

In cumulative terms, since the 'golden visa' scheme was launched on 8 October of 2012, total investment to December is €2.567 billion, of which 2.316 billion is for property purchases and €251 million for capital transfers.

China is by far the country with the most citizens to have secured permits under the scheme, with 3,050 so far, followed by Brazil with 247, Russia with 148, South Africa with 137 and Lebanon with 72.

Since 2013 a further 6,637 residence permits have been issued to family members of golden visa holders: 576 in 2013, then 2,395 in 2014, then 1,322 in 2015 and now 2,344 in 2016.

In 2015 investment under the golden visa scheme slumped to about half the level of 2014, after a criminal investigation into suspected fraud in its administration prompted a crackdown and the programme's suspension for several months.