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The image contains a line graph showing Twitter use by age group over 8 time points: 10/11, 11/01, 11/05, 11/08, 12/02, 12/08, 12/12, 13/05. Age groups are represented as 18-29, 30-49, 50-64, 65+. At 10/11, 18-29 usage is around 30%, 30-49 around 15%, 50-64 around 5%, 65+ just under 5%. At 11/01, 18-29 increases to just under 35%, 30-49 to just above 15%, 50-64 and 65+ remain steady. At 11/05, 18-29 drops to just above 30%, 30-49 rises to 20%, 50-64 to almost 10%, 65+ to almost 5%. At 11/08, 18-29 rises to just under 35%, 30-49 to just over 20%, 50-64 to just over 10%, 65+ to just over 5%. At 12/02, 18-29 drops to 30%, 30-49 drops to 15%, 50-64 rises to 12.5%, 65+ drops to 5%. At 12/08, 18-29 rises to almost 35%, 30-49 rises to 20%, 50-64 to almost 15%, 65+ to just over 5%. At 12/12, 18-29 drops to just above 30%, 30-49 drops to just over 15%, 50-64 rises to 15%, 65+ to just under 5%. At 13/05, 18-29 rises to just below 35%, 30-49 to just over 20%, 50-64 to just under 15%, 65+ remains steady.
Given the complexity of the image, the above description may not be entirely accurate.
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Overall, Twitter usage increased across all age groups over the period. The 18-29 age group consistently recorded the highest proportion of users, while people aged 65 and over remained the least likely to use the platform.
At the beginning of the period, around 14% of those aged 18-29 used Twitter. This figure rose to approximately 19% in late 2011 before remaining relatively stable at around 17-18% until early 2012. It then increased sharply, reaching a peak of about 31% in August 2012. Although the percentage fell slightly to 27% in December 2012, it recovered to around 30% by May 2013.
Twitter use among the 30-49 age group also showed an upward trend, increasing from roughly 7% to 17% overall. Despite some fluctuations, particularly between late 2011 and early 2012, the figure rose steadily during the second half of the period.
The two older age groups experienced more modest growth. Usage among people aged 50-64 climbed gradually from about 5% to 12%, with a slight dip in early 2012. Meanwhile, the 65+ group had the lowest figures throughout, starting at approximately 3%, briefly reaching 5% in early 2012, and ending at around 4-5% in May 2013.
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