Tablet computer - Unit sales – global tablet market (2010-2014)

As of the beginning of 2014, 44% of US online consumers own tablets, a significant jump from 5% in 2011.[148] Tablet use has also become increasingly common among children. A 2014 survey found that touch screens were the most frequently used object for play among American children under the age of 12. Touch screen devices were used more often in play than game consoles, board games, puzzles, play vehicles, blocks and dolls/action figures. Despite this, the majority of parents said that a touch screen device was "never" or only "sometimes" a toy.[149] As of 2014, nearly two-thirds of American 2- to 10-year-olds have access to a tablet or e-reader.[150] The large use of tablets by adults is as a personal internet-connected TV.[151] A 2015 study found that a third of children under five have their own tablet device.[152] While Android tablets sell more units than iPad, the web browser usage share of iPads is about 65% as of the middle of 2015.[153]

Reference 1: Units (million) and Growth (%).

Reference 2: 2010[154], 2011[155], 2012[99], 2013[99] and 2014[156].

Source: http://en.wikipedia.org/wiki/Tablet_computer