An additional one billion people will become mobile subscribers over the next five years, according to a major new GSMA report published at Mobile World Congress today. The new report, ‘The Mobile Economy: 2015’, forecasts that the number of unique mobile subscribers¹ will increase from 3.6 billion at the end of 2014 to 4.6 billion by 2020, increasing by four per cent per year (CAGR) over this period. By 2020, almost 60 per cent of the global population will subscribe to mobile services, up from half of the population at the end of 2014.