Altogether, more than 200,000 worldwide have completed Book 1 of the Ruhi Institute

While inadequate to express the full significance of the developments taking place, the statistics suggest something of the scope of what is being achieved. The human resources of the Faith have steadily multiplied. Altogether, more than 200,000 worldwide have completed Book 1 of the Ruhi Institute, and many thousands have reached the level where they can effectively act as tutors of the study circles that, with increasing frequency, are held in every part of the globe, over 10,000 at the last count. The number of seekers engaged in the core activities has continued to climb, crossing the 100,000 mark several months ago. Meanwhile, some 150 clusters have developed to the point that intensive programs of growth either have been launched or stand ready to be initiated. There is every indication that this number will be substantially surpassed by the end of the Plan.

(The Universal House of Justice, Riḍván 2005)