E-commerce sales worldwide reached $1.25 trillion in 2013 according to data from Emarketer, Bitkom, and Hermes. China was the largest e-commerce market with sales of $248 billion, followed by the United States at $231 billion. Mobile commerce is growing rapidly, accounting for 12.8% of total e-commerce sales globally in 2013 and projected to rise to 17.5% of total e-commerce sales by 2017.