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Costa Rica
| Year | Live births Boys | Live births Girls | Total births | Population of Men | Population of Women | Total population |
| 1955 | 24,739 | 23,750 | 48,489 | 516,000 | 514,000 | 1,030,000 |
| 1956 | 25,436 | 24,375 | 49,811 | 536,000 | 533,000 | 1,069,000 |
| 1957 | 26,727 | 24,199 | 50,926 | 556,000 | 555,000 | 1,111,000 |
| 1958 | 27,733 | 26,166 | 53,899 | 577,300 | 575,800 | 1,153,100 |
| 1959 | 28,483 | 27,365 | 55,848 | 600,800 | 599,200 | 1,200,000 |
| 1960 | 29,834 | 28,951 | 58,785 | 629,400 | 624,700 | 1,254,100 |
| 1961 | 31,450 | 30,216 | 61,666 | 651,400 | 646,500 | 1,297,900 |
| 1962 | 31,866 | 30,758 | 62,624 | 674,200 | 669,100 | 1,343,300 |
| 1963 | 32,742 | 31,056 | 63,798 | 698,000 | 692,700 | 1,390,700 |
| 1964 | 31,454 | 30,299 | 61,753 | 722,300 | 716,800 | 1,439,100 |
| 1965 | 32,388 | 30,521 | 62,909 | 747,700 | 742,100 | 1,489,800 |
| 1966 | 31,979 | 30,984 | 62,963 | 773,300 | 767,500 | 1,540,800 |
| 1967 | 31,782 | 30,181 | 61,963 | 798,000 | 791,900 | 1,589,900 |
| 1968 | 30,352 | 28,861 | 59,213 | 820,200 | 813,800 | 1,634,000 |
| 1969 | 29,555 | 28,429 | 57,984 | 845,900 | 839,100 | 1,685,000 |
| 1970 | 29,439 | 28,318 | 57,757 | 867,300 | 860,100 | 1,727,400 |
| 1971 | 28,541 | 27,797 | 56,338 | 902,700 | 895,100 | 1,797,800 |
| 1972 | 29,458 | 27,980 | 57,438 | 925,400 | 917,400 | 1,842,800 |
| 1973 | 27,365 | 26,090 | 53,455 | 939,000 | 933,700 | 1,872,700 |
| 1974 | 29,099 | 27,670 | 56,769 | 963,500 | 958,100 | 1,921,600 |
| 1975 | 30,589 | 28,749 | 59,338 | 975,600 | 989,300 | 1,964,900 |
| 1976 | 30,549 | 29,197 | 59,746 | 1,003,000 | 1,017,000 | 2,020,000 |
| 1977 | 32,896 | 31,292 | 64,188 | 1,041,700 | 1,028,300 | 2,070,000 |
| 1978 | 34,474 | 33,185 | 67,659 | 1,070,700 | 1,054,900 | 2,125,600 |
| 1979 | 35,584 | 33,664 | 69,248 | 1,094,200 | 1,075,800 | 2,170,000 |
| 1980 | 35,795 | 34,197 | 69,992 | 1,127,000 | 1,118,000 | 2,245,000 |
| 1981 | 36,922 | 35,176 | 72,098 | 1,139,000 | 1,132,000 | 2,271,000 |
| 1982 | 36,490 | 34,765 | 71,255 | 1,166,000 | 1,158,000 | 2,324,000 |
| 1983 | 37,388 | 35,564 | 72,952 | 1,184,400 | 1,194,200 | 2,378,600 |
| 1984 | 40,507 | 38,516 | 79,023 | 1,275,700 | 1,258,000 | 2,533,700 |
| 1985 | 43,255 | 40,997 | 84,252 | 1,313,500 | 1,286,500 | 2,600,000 |
| 1986 | 42,623 | 40,571 | 83,194 | 1,346,800 | 1,319,100 | 2,665,900 |
| 1987 | 41,151 | 39,175 | 80,326 | 1,410,000 | 1,381,000 | 2,791,000 |
| 1988 | 41,974 | 39,402 | 81,376 | 1,447,900 | 1,418,400 | 2,866,300 |
| 1989 | 42,708 | 40,752 | 83,460 | 1,494,000 | 1,461,000 | 2,955,000 |
| 1990 | 41,789 | 40,150 | 81,939 | 1,534,000 | 1,500,000 | 3,034,000 |
| 1991 | 41,366 | 39,744 | 81,110 | 1,574,000 | 1,539,000 | 3,113,000 |
| 1992 | 40,884 | 39,280 | 80,164 | 1,614,100 | 1,577,700 | 3,191,800 |
| 1993 | 40,654 | 39,060 | 79,714 | 1,653,600 | 1,616,100 | 3,269,700 |
| 1994 | 40,999 | 39,392 | 80,391 | 1,692,800 | 1,654,300 | 3,347,100 |
| 1995 | 40,956 | 39,350 | 80,306 | 1,800,700 | 1,753,200 | 3,553,900 |