A recent report published by ComScore shows that internet users in Brazil – those who are less than 15 years old – constitute as much as 12% of the total internet using population. This report pegs the total number of users in this South American country at 40.7 million. Note that this number is only users accessing internet from a home or work location. The actual number that includes people accessing internet from universities, public cafes,etc. is close to 73 million.
Here is how the 40.7 million users are split up age-wise.
06-14 : 4.8 million
15-24 : 10.4 million
25-34 : 12.4 million
35-44 : 7.6 million
45-54 : 3.8 million
55+ : 1.6 million
I have not put down the numbers in percent terms because I do not think the percentage will hold like-wise for the overall population (including those accessing internet from universities and public cafes). Most of these users not included in the study are likely to be between 18-35 years and hence the percentages may significantly vary for the actual population.