In their 1992 monograph, The Population of North Korea, Eberstadt and Banister use the data given to the UNFPA and also make their own assessments. They place the total population at 21.4 million persons in mid-1990, consisting of 10.6 million males and 10.8 million females. This figure is close to an estimate of 21.9 million persons for mid-1988 cited in the 1990 edition of the Demographic Yearbook published by the UN. Korean Review, a book by Pan Hwan Ju published by the P'yongyang Foreign Languages Press in 1987, gives a figure of 19.1 million persons for 1986.

The figures disclosed by the government reveal an unusually low proportion of males to females: in 1980 and 1987, the maleto -female ratios were 86.2 to 100, and 84.2 to 100, respectively. Low male-to-female ratios are usually the result of a war, but these figures were lower than the sex ratio of 88.3 males per 100 females recorded for 1953, the last year of the Korean War. The male-to-female ratio would be expected to rise to a normal level with the passage of years, as happened between 1953 and 1970, when the figure was 95.1 males per 100 females. After 1970, however, the ratio declined. Eberstadt and Banister suggest that before 1970 male and female population figures included the whole population, yielding ratios in the ninetieth percentile, but that after that time the male military population was excluded from population figures. Based on the figures provided by the Central Statistics Bureau, Eberstadt and Banister estimate that the actual size of the "hidden" male North Korean military had reached 1.2 million by 1986 and that the actual male-to-female ratio was 97.1 males to 100 females in 1990. If their estimates are correct, 6.1 percent of North Korea's total population was in the military, numerically the world's fifth largest military force, in the late 1980s (see The Armed Forces , ch. 5).

The annual population growth rate in 1960 was 2.7 percent, rising to a high of 3.6 percent in 1970, but falling to 1.9 percent in 1975. This fall reflected a dramatic decline in the fertility rate: the average number of children born to women decreased from 6.5 in 1966 to 2.5 in 1988. Assuming the data are reliable, reasons for falling growth rates and fertility rates probably include late marriage, urbanization, limited housing space, and the expectation that women would participate equally in terms of work hours in the labor force. The experience of other socialist countries suggests that widespread labor force participation by women often goes hand-in-hand with more traditional role expectations in other words, they are still responsible for housework and childrearing. The high percentage of males aged seventeen to twenty-six may also have contributed to the low fertility rate. According to Eberstadt and Banister's data, the annual population growth rate in 1991 was 1.9 percent.

The North Korean government seems to perceive its population as too small in relation to that of South Korea. In its public pronounceme742 ments, P'yongyang has called for accelerated population growth and encouraged large families. According to one KoreanAmerican scholar who visited North Korea in the early 1980s, the country has no birth control policies parents are encouraged to have as many as six children. The state provides t'agaso (nurseries) in order to lessen the burden of childrearing for parents and offers a seventy-seven-day paid leave after childbirth (see Family Life The Role of Women , this ch.). Eberstadt and Banister suggest, however, that authorities at the local level make contraceptive information readily available to parents and that intrauterine devices are the most commonly adopted birth control method. An interview with a former North Korean resident in the early 1990s revealed that such devices are distributed free at clinics.

Data as of June 1993