In 1968, a total of 88 membership applications were accepted, 20 in 1969 and 25 in 1970. By then, 126 persons were reported members in the Society. As shown on the graph below, the number of reported members gradually increased to 251 during 1976 to 1995.

In 1997, however, it became clear that several registered members were not willing to pay their gradually accumulating debts. Consequently, they were removed from the membership list. At present, the number of members is about 130 and recently the local Treasurers started a campaign to enlist new members in the SSP.

See graph of membership development through time: