The issue of statistics came up again today (as it does from time to time), currently CAcert is experiencing linear growth rates both in the number of certificates issued each month and the numbers of new signups. Assurances tend to be a bit spikey depending how many conferences attended.
In any case, the number of certificates issued has more then doubled in the past 10 months (about May last year is the half way point) so one must wonder where things are headed if the same trend continues.
Some quick stats for people, about the begining of this month we issued our 100,000th certificate, and about the same time we had our 50,000th signup, and by this time next year we could easily have more then double both those numbers.