The population growth rate is 1.3 percent in the ROC, 0.6 percent in the U.S., and 0.1 percent in Belgium. In West Germany the population is decreasing at a rate of 0.2 percent.
在人口增加率方面，我國每年為百分之一．三，美國為○．六，比利時○．一，西德則每年減少百分之○．二。