Eventbrite processed its 100 millionth ticket Wednesday, just 13 months after reaching the 50 million mark. Over 35 million of the company’s tickets and registrations came in 2012 alone.

The San Francisco-based company also announced Wednesday that it has amassed cumulative gross ticket sales of $1.5 billion since its launch in 2006. One-third of those sales have taken place in just the last nine months.

There are two things that have tripped up reporters who overlooked the press release’s clear wording. First, Eventbrite has not sold its 100 millionth ticket, it has processed its 100 millionth ticket. Its platform is used for free events as well as paid events. If you went to any SXSW parties in recent years, you may have signed up via Eventbrite without paying to enter. Second, Eventbrite’s gross ticket sales are not the same as the revenue it derives from ticketing fees. It would be incorrect to compare Eventbrite’s gross ticket sales to the fees Ticketmaster derives from selling tickets. If you want something of an apples-to-apples comparison, the value of Ticketmaster’s gross ticket sales in 2012 was $9.1 billion, according to the company’s year-end earnings release.

Organizers around the world use Eventbrite to ticket events of all types, such as concerts, festivals, book readings, beer festivals and conventions. The platform is localized in 14 countries and seven languages, and was used by organizers and attendees in 179 countries in the last year.

The privately held company has raised $78.1 million from Sequoia Capital, Tiger Global Management, DAG Ventures and Tenaya Capital. [Billboard.biz]