BigBlueBlueButton is currently localized in over 35 languages (thanks to contributions of language files from our community).
To analyze the installs of BigBlueButton, we recently looked at the web logs for our apt-get repository. Each time a BigBlueButton VM starts for the first time, or each time a developer/administrator installs BigBlueButton from packages, it downloads files from the web server running on our apt-get repository. By analyzing the incoming IP addresses logged by the web server, we can approximate the installs for BigBlueButton.
Over the last year there have been approximately 61,000 BigBlueButton servers installed in over 163 different countries. The pie chart below displays the top 20 countries from this list. We only counted unique IP addresses, so the real number is probably slightly higher (multiple installs behind a firewall only count as a single entry).