The DAE Review emphasized the influence digital technologies were having on jobs and growth, noting that the internet is empowering people to create and share their ideas, giving rise to new content, entrepreneurs and markets. Half of all productivity growth derives from investment in ICT. Internet traffic is doubling every 2–3 years and mobile internet traffic every year. By 2015 there will be 25 billion wirelessly connected devices globally; doubling to 50 billion in 2020. Mobile data traffic is expected to increase 12-fold between 2012 and 2018, and data traffic on smartphones to increase 14 times by 2018. There are more than 4 million ICT workers across many sectors in Europe and their number is growing by 3 per cent annually despite the crisis.