Bulgária - Natalidade
| Data | Nascidos vivos | Nascidos - homens | Nascidos - mulheres | Taxa de natalidade | Taxa de fertilidade |
|---|---|---|---|---|---|
| 1991 | 95.910 | 49.500 | 46.400 | 11,10‰ | 1,66 |
| 1990 | 105.180 | 54.000 | 51.200 | 12,10‰ | 1,82 |
| 1989 | 112.289 | 57.600 | 54.700 | 12,60‰ | 1,90 |
| 1988 | 117.440 | 60.500 | 56.900 | 13,10‰ | 1,97 |
| 1987 | 116.672 | 59.700 | 56.900 | 13,00‰ | 1,96 |
| 1986 | 120.078 | 61.400 | 58.700 | 13,40‰ | 2,02 |
| 1985 | 118.955 | 60.900 | 58.000 | 13,30‰ | 1,97 |
| 1984 | 122.303 | 63.100 | 59.200 | 13,60‰ | 2,01 |
| 1983 | 122.993 | 63.000 | 60.000 | 13,80‰ | 2,01 |
| 1982 | 124.166 | 64.000 | 60.200 | 13,90‰ | 2,01 |
| 1981 | 124.372 | 64.200 | 60.200 | 14,00‰ | 2,00 |
| 1980 | 128.190 | 66.100 | 62.100 | 14,50‰ | 2,05 |
| 1979 | 135.358 | 69.900 | 65.500 | 15,30‰ | 2,16 |
| 1978 | 136.442 | 70.000 | 66.400 | 15,50‰ | 2,15 |
| 1977 | 141.702 | 72.800 | 68.900 | 16,10‰ | 2,21 |
| 1976 | 144.929 | 74.700 | 70.200 | 16,50‰ | 2,24 |
| 1975 | 144.668 | 74.400 | 70.300 | 16,60‰ | 2,23 |
| 1974 | 149.196 | 76.700 | 72.500 | 17,20‰ | 2,29 |
| 1973 | 139.713 | 71.700 | 68.100 | 16,20‰ | 2,15 |
| 1972 | 131.316 | 67.800 | 63.500 | 15,30‰ | 2,03 |
| 1971 | 135.422 | 69.800 | 65.600 | 15,90‰ | 2,10 |
| 1970 | 138.745 | 71.800 | 66.900 | 16,30‰ | 2,17 |
| 1969 | 143.060 | 73.500 | 69.600 | 17,00‰ | 2,27 |
| 1968 | 141.460 | 72.600 | 68.800 | 16,90‰ | 2,27 |
| 1967 | 124.582 | 64.200 | 60.400 | 15,00‰ | 2,02 |
| 1966 | 123.039 | 63.500 | 59.600 | 14,90‰ | 2,03 |
| 1965 | 125.791 | 64.800 | 61.000 | 15,30‰ | 2,09 |
| 1964 | 130.958 | 67.400 | 63.500 | 16,10‰ | 2,19 |
| 1963 | 132.143 | 68.000 | 64.100 | 16,40‰ | 2,21 |
| 1962 | 134.148 | 68.800 | 65.300 | 16,70‰ | 2,24 |
| 1961 | 137.861 | 71.200 | 66.600 | 17,40‰ | 2,29 |
| 1960 | 140.082 | 72.200 | 67.900 | 17,80‰ | 2,31 |