“Despite steady growth of 3%, which puts the U.S. ahead of Canada’s rate of increase, the country’s retail market will lose share of the worldwide total over eMarketer’s forecast period as retailing in developing markets grows more quickly.

“The vast majority of 2015’s nearly $5 trillion in U.S. retail sales occurred in stores; retail E-commerce accounted for just 7.1% of all retail sales (though that share is growing). By 2019, eMarketer estimates that 9.8% of U.S. retail sales will be transacted over the internet. The 2015 E-commerce share was slightly behind Western Europe, where 7.5% of retail sales were transacted online. In Asia-Pacific, the share was 10.2%, the highest in the world.”