2012

2013

2014

2015

2016

2017

2018

Smartphone users(billions)

1.06

1.40

1.76

2.04

2.29

2.52

2.73

?%change

58.7%

32.3%

25.1%

16.3%

12.2%

10.2%

8.1%

?% of mobile users

25.8%

31.9%

3708%

41.8%

45.0%

47.7%

49.8%

?% of population

15.2%

19.8%

24.5%

28.2%

31.3%

34.2%

36.5%