This mobile data traffic increase represents a compound annual growth rate (CAGR) of 78 percent spanning the forecast period.

ENGADGET: Cisco: mobile connections will hit 10 billion by 2016, helped by tablet boom

Gartner is forecasting premium smartphone production will grow from 601M units in 2013 to 965M in 2106, attaining a 12.56% Compound Annual Growth Rate (CAGR) in the forecast period.

FORBES: Connect

If we assume 15 percent compound annual growth rate (CAGR) as an average growth target, in 10 years our small IT room would need to support at least 160 racks with over 2, 000 physical servers, and would require almost 5, 000 square feet of floor space.

FORBES: The Case for the Infinite Data Center