The increasing proportion of higher speed connections and proliferation of 3G and 4G networks largely reflects the accelerating rate of smartphone adoption. Adoption rates reached 65% of the connection base in the developed world
at the end of 2015, ranging from 59% in Europe to 74% in North America. Smartphone adoption is accelerating across the developing world; smartphone connections reached 40% of the total
connections base by the end of 2015 (up from 5% in 2010), largely due to growth in Asia Pacific and Latin America.