There is a correlation between economic growth and mobile revenue growth in markets where prepaid is dominant - more than four in every five mobile subscriptions in the developing world were prepaid in 2016. However, between 2014 and 2016, the global increase in data revenues (USD 70.2 billion) was lower than the loss recorded in voice revenues (USD 114.6 billion). In fact, Asia and the Pacific and the United States/Canada were the only two regions in which the increase in mobile data revenues during the period was greater than the loss in voice revenues. Overall, the relative importance of data revenues over mobile revenues is correlated with a country's Internet penetration.