"Indonesia in the 1970s and 1980s undertook a particularly broad program, with 40,000 village centers distributing free contraceptives and educational materials. The government promoted birth control relentlessly: The back of the five-rupiah coin displayed a two-child family with the message "Family Planning: The Way to Prosperity," and the national family-planning jingle played whenever a train passed a railway crossing. At five o'clock every afternoon, sirens went off around the country to remind women to take their birth-control pills. The number of couples practicing birth control rose from 400,000in 1972 to 18.6 million in 1989, and over the same period, the TFR* fell from 5.6 to 3.4 per woman." - Weil (2005), pp. 109

* - Total Fertility Rate