Ireland continues to de-leverage its domestic private sector while growing its US multinational-driven economy. Ireland became the main destination for US corporate tax inversions from 2009 to 2016 (mostly pharmaceutical), peaking with the blocked $160bn Allergan/Pfizer inversion (world's largest inversion, and circa 85% of Irish GNI*). Ireland also became the largest foreign location for US "big cap" technology multinationals (i.e. Apple, Google, Microsoft, Facebook), which delivered a GDP growth rate of 26.3% (and GNP growth rate of 18.7%) in 2015. This growth was subsequently shown to be due to Apple restructuring its "double Irish" subsidiary (Apple Sales International, currently under threat of a €13bn EU "illegal state aid" fine for preferential tax treatment).