According to recently published data, 8.3 million new computer systems were sold in Brazil last year. And of these, 18% shipped with free software (OS, desktop and applications). So we are talking about 1.5 million new free software desktops!
More data here (in Portuguese.)
What the story does not tell is that (last time I checked!) all 11 distros that shipped pre-installed in Linux systems in Brazil used KDE as the default desktop. Neat!