One of the first surveys of sannyasins was conducted in 1980 at the Poona ashram by Swami Krishna Deva (David Berry Knapp), an American clinical psychologist who would later serve as mayor of Rajneeshpuram.[1] In the survey, Krishna Deva polled 300 American sannyasins and discovered that their median age was just over 30. 60 percent of them had been sannyasins for less than two years, and most continued to live in the United States. Half of them came from California, 97 percent were white, 25 percent were Jewish and 85 percent belonged to the middle and upper-middle classes.[35][63] Almost two-thirds had university degrees and viewed themselves as "successful in worldly terms".