Completed fertility in Bulgaria

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This page gives information of type completed fertility about the country Bulgaria.
See all pages giving information on completed fertility for particular countries|See all pages giving information about Bulgaria

Data sources

Some data on this page comes from the Human Fertility Database (website www.humanfertility.org) (data downloaded March 11, 2014, last updated by HFD October 28, 2011). The data collected by the Human Fertility Database is based on government data collection by the government of Bulgaria. You can download the data yourself here. Details about the modalities of data collection are available here. Where available, we use HFD data because of its higher reliability.

CCF and CCF40 not broken down by birth order

Cohort Completed cohort fertility (CCF) CCF minus previous year's CCF CCF40 CCF40 minus previous year's CCF40
1932 2.046 2.03
1933 2.049 0.003 2.034 0.004
1934 2.041 -0.008 2.027 -0.007
1935 2.032 -0.009 2.019 -0.008
1936 2.036 0.004 2.023 0.004
1937 2.038 0.002 2.027 0.004
1938 2.038 0 2.027 0
1939 2.052 0.014 2.041 0.014
1940 2.086 0.034 2.075 0.034
1941 2.094 0.008 2.084 0.009
1942 2.092 -0.002 2.082 -0.002
1943 2.075 -0.017 2.066 -0.016
1944 2.079 0.004 2.069 0.003
1945 2.07 -0.009 2.06 -0.009
1946 2.055 -0.015 2.046 -0.014
1947 2.051 -0.004 2.041 -0.005
1948 2.063 0.012 2.053 0.012
1949 2.079 0.016 2.07 0.017
1950 2.064 -0.015 2.054 -0.016
1951 2.048 -0.016 2.039 -0.015
1952 2.037 -0.011 2.029 -0.01
1953 2.036 -0.001 2.028 -0.001
1954 2.042 0.006 2.033 0.005
1955 2.026 -0.016 2.017 -0.016
1956 2.035 0.009 2.026 0.009
1957 2.043 0.008 2.035 0.009
1958 2.017 -0.026 2.007 -0.028
1959 1.989 -0.028 1.979 -0.028
1960 unavailable 1.943 -0.036
1961 unavailable 1.904 -0.039
1962 unavailable 1.864 -0.04
1963 unavailable 1.85 -0.014
1964 unavailable 1.87 0.02
1965 unavailable 1.802 -0.068
1966 unavailable 1.798 -0.004
1967 unavailable 1.77 -0.028
1968 unavailable 1.739 -0.031
1969 unavailable 1.673 -0.066


Completed cohort fertility broken down by birth order

Cohort Completed cohort fertility (CCF) CCF1 CCF2 CCF3 CCF4 CCF5+ CCF1 proportion CCF2 proportion CCF3 proportion CCF4 proportion CCF5+ proportion
1932 2.046 0.906 0.73 0.22 0.089 0.1 0.4428152493 0.3567937439 0.1075268817 0.0434995112 0.0488758553
1933 2.049 0.914 0.738 0.216 0.087 0.093 0.4460712543 0.3601756955 0.1054172767 0.0424597365 0.0453879941
1934 2.041 0.918 0.739 0.212 0.084 0.088 0.4497795198 0.362077413 0.1038706516 0.0411562959 0.0431161195
1935 2.032 0.918 0.74 0.209 0.082 0.083 0.4517716535 0.3641732283 0.1028543307 0.0403543307 0.0408464567
1936 2.036 0.919 0.749 0.209 0.081 0.078 0.4513752456 0.3678781925 0.1026522593 0.03978389 0.0383104126
1937 2.038 0.921 0.755 0.21 0.079 0.074 0.4519136408 0.3704612365 0.1030421982 0.0387634936 0.0363101079
1938 2.038 0.924 0.756 0.21 0.077 0.071 0.4533856722 0.3709519136 0.1030421982 0.0377821394 0.0348380765
1939 2.052 0.934 0.761 0.213 0.075 0.069 0.455165692 0.3708576998 0.1038011696 0.0365497076 0.033625731
1940 2.086 0.954 0.776 0.217 0.074 0.066 0.4573346117 0.3720038351 0.1040268456 0.0354745925 0.0316395014
1941 2.094 0.963 0.782 0.217 0.071 0.06 0.4598853868 0.3734479465 0.1036294174 0.0339063992 0.0286532951
1942 2.092 0.966 0.787 0.215 0.068 0.057 0.4617590822 0.3761950287 0.1027724665 0.0325047801 0.0272466539
1943 2.075 0.959 0.79 0.21 0.065 0.052 0.4621686747 0.3807228916 0.1012048193 0.0313253012 0.025060241
1944 2.079 0.967 0.793 0.206 0.062 0.05 0.4651274651 0.3814333814 0.0990860991 0.0298220298 0.0240500241
1945 2.07 0.971 0.792 0.201 0.06 0.047 0.4690821256 0.3826086957 0.0971014493 0.0289855072 0.022705314
1946 2.055 0.96 0.793 0.197 0.059 0.046 0.4671532847 0.3858880779 0.095863747 0.0287104623 0.0223844282
1947 2.051 0.959 0.796 0.193 0.057 0.046 0.4675767918 0.3881033642 0.0941004388 0.0277913213 0.0224280839
1948 2.063 0.973 0.798 0.192 0.056 0.045 0.471643238 0.3868153175 0.0930683471 0.0271449346 0.0218128938
1949 2.079 0.984 0.805 0.191 0.056 0.043 0.4733044733 0.3872053872 0.0918710919 0.0269360269 0.0206830207
1950 2.064 0.976 0.799 0.192 0.055 0.042 0.4728682171 0.3871124031 0.0930232558 0.0266472868 0.0203488372
1951 2.048 0.963 0.796 0.193 0.055 0.042 0.4702148438 0.388671875 0.0942382813 0.0268554688 0.0205078125
1952 2.037 0.966 0.788 0.187 0.053 0.043 0.4742268041 0.3868433972 0.0918016691 0.0260186549 0.0211094747
1953 2.036 0.971 0.789 0.183 0.052 0.041 0.4769155206 0.387524558 0.0898821218 0.025540275 0.0201375246
1954 2.042 0.975 0.79 0.182 0.052 0.043 0.4774730656 0.3868756121 0.0891283056 0.0254652302 0.0210577865
1955 2.026 0.969 0.782 0.18 0.051 0.043 0.4782823297 0.385982231 0.0888450148 0.0251727542 0.0212240869
1956 2.035 0.976 0.786 0.182 0.05 0.041 0.4796068796 0.3862407862 0.0894348894 0.0245700246 0.0201474201
1957 2.043 0.981 0.788 0.181 0.052 0.041 0.4801762115 0.3857072932 0.0885952031 0.0254527655 0.0200685267
1958 2.017 0.981 0.774 0.173 0.048 0.04 0.4863658899 0.3837382251 0.085770947 0.0237977194 0.0198314328
1959 1.989 0.975 0.762 0.166 0.049 0.037 0.4901960784 0.383107089 0.0834590246 0.0246354952 0.0186023127
Maximum 2.094 0.984 0.805 0.22 0.089 0.1 0.4901960784 0.388671875 0.1075268817 0.0434995112 0.0488758553
Minimum 1.989 0.906 0.73 0.166 0.048 0.037 0.4428152493 0.3567937439 0.0834590246 0.0237977194 0.0186023127
Average (arithmetic mean) 2.0504642857 0.9551071429 0.7762142857 0.1984642857 0.06425 0.0564642857 0.4658442465 0.3785570185 0.0967539429 0.0313252191 0.0275360509
Geometric mean 2.0503327349 0.954801055 0.775914347 0.1978876113 0.0630190584 0.053932576 0.4656810276 0.37843338 0.0965148768 0.0307360153 0.0263043042
Median 2.047 0.9645 0.7865 0.199 0.0595 0.0465 0.4673650382 0.3828578923 0.0964825981 0.0288479848 0.0225666989
Standard deviation 0.0236415863 0.0244590955 0.0218146352 0.0152424411 0.0130940331 0.0184440739 0.0125511929 0.0097850807 0.0068846007 0.0063610893 0.0090226574
Slope for best linear fit (using linear regression) -0.0009619595 0.0026193213 0.001771757 -0.001744116 -0.0015465244 -0.0020637657 0.0015076455 0.0010462526 -0.0008108152 -0.0007441535 -0.0009996664
Multiplier for best logarithmic fit (using linear regression on logarithm) 0.9995277812 1.0027707189 1.0023208354 0.9911164223 0.9765686159 0.9660012959 1.0032444698 1.0027943738 0.9915846672 0.9770299878 0.9664576754
R^2 for linear regression 0.1120302045 0.7760175494 0.4463619637 0.8859648325 0.9439335897 0.8471920485 0.9763448585 0.7736045786 0.9385578461 0.9260551404 0.8306460666

CCF40 broken down by birth order

Year CCF40 CCF40_1 CCF40_2 CCF40_3 CCF40_4 CCF40_5+ CCF40_1 proportion CCF40_2 proportion CCF40_3 proportion CCF40_4 proportion CCF40_5+ proportion
1932 2.03 0.904 0.727 0.218 0.088 0.093 0.445320197 0.3581280788 0.1073891626 0.0433497537 0.0458128079
1933 2.034 0.912 0.735 0.214 0.085 0.087 0.4483775811 0.3613569322 0.1052114061 0.0417895772 0.0427728614
1934 2.027 0.915 0.736 0.21 0.083 0.083 0.4514060187 0.3630981746 0.1036013814 0.0409472126 0.0409472126
1935 2.019 0.916 0.737 0.207 0.081 0.078 0.4536899455 0.3650321942 0.102526003 0.0401188707 0.0386329866
1936 2.023 0.917 0.746 0.207 0.079 0.074 0.4532871972 0.3687592684 0.1023232823 0.0390509145 0.0365793376
1937 2.027 0.919 0.753 0.208 0.077 0.071 0.4533793784 0.3714849531 0.1026147015 0.0379871732 0.0350271337
1938 2.027 0.922 0.754 0.208 0.075 0.067 0.4548593981 0.371978293 0.1026147015 0.0370004933 0.0330537741
1939 2.041 0.932 0.759 0.211 0.074 0.065 0.4566389025 0.3718765311 0.1033806957 0.0362567369 0.0318471338
1940 2.075 0.952 0.774 0.215 0.073 0.062 0.4587951807 0.3730120482 0.1036144578 0.0351807229 0.0298795181
1941 2.084 0.961 0.78 0.215 0.07 0.057 0.4611324376 0.3742802303 0.1031669866 0.0335892514 0.0273512476
1942 2.082 0.964 0.785 0.213 0.067 0.054 0.4630163305 0.3770413064 0.1023054755 0.0321805956 0.0259365994
1943 2.066 0.957 0.787 0.209 0.064 0.05 0.46321394 0.380929332 0.1011616651 0.0309777348 0.0242013553
1944 2.069 0.965 0.791 0.204 0.061 0.048 0.4664088932 0.3823102948 0.0985983567 0.029482842 0.0231996133
1945 2.06 0.969 0.789 0.199 0.058 0.044 0.4703883495 0.3830097087 0.0966019417 0.0281553398 0.0213592233
1946 2.046 0.958 0.791 0.195 0.058 0.044 0.468230694 0.3866080156 0.0953079179 0.0283479961 0.0215053763
1947 2.041 0.957 0.793 0.191 0.056 0.044 0.4688878001 0.3885350318 0.0935815777 0.0274375306 0.0215580598
1948 2.053 0.97 0.796 0.189 0.055 0.042 0.4724792986 0.3877252801 0.0920603994 0.0267900633 0.0204578665
1949 2.07 0.982 0.803 0.19 0.055 0.041 0.4743961353 0.3879227053 0.0917874396 0.0265700483 0.0198067633
1950 2.054 0.973 0.797 0.19 0.054 0.04 0.4737098345 0.388023369 0.0925024343 0.0262901655 0.0194741967
1951 2.039 0.96 0.794 0.191 0.054 0.04 0.4708190289 0.3894065718 0.0936733693 0.0264835704 0.0196174595
1952 2.029 0.964 0.786 0.185 0.052 0.041 0.4751108921 0.3873829473 0.0911779202 0.0256283884 0.0202069985
1953 2.028 0.969 0.786 0.181 0.052 0.039 0.4778106509 0.3875739645 0.0892504931 0.0256410256 0.0192307692
1954 2.033 0.973 0.788 0.18 0.051 0.041 0.4786030497 0.3876045253 0.0885391048 0.0250860797 0.0201672405
1955 2.017 0.967 0.781 0.178 0.05 0.042 0.4794248884 0.3872087258 0.0882498761 0.024789291 0.0208230045
1956 2.026 0.974 0.784 0.18 0.049 0.039 0.4807502468 0.3869693978 0.0888450148 0.0241855874 0.0192497532
1957 2.035 0.979 0.786 0.18 0.051 0.039 0.4810810811 0.3862407862 0.0884520885 0.0250614251 0.0191646192
1958 2.007 0.978 0.772 0.171 0.048 0.038 0.4872944694 0.384653712 0.0852017937 0.023916293 0.0189337319
1959 1.979 0.972 0.76 0.165 0.048 0.035 0.4911571501 0.3840323396 0.0833754421 0.0242546741 0.0176856998
1960 1.943 0.958 0.748 0.156 0.045 0.036 0.4930519815 0.3849716933 0.0802882141 0.0231600618 0.0185280494
1961 1.904 0.951 0.731 0.146 0.042 0.034 0.4994747899 0.3839285714 0.0766806723 0.0220588235 0.0178571429
1962 1.864 0.927 0.717 0.144 0.042 0.034 0.4973175966 0.3846566524 0.0772532189 0.0225321888 0.0182403433
1963 1.85 0.93 0.708 0.139 0.04 0.033 0.5027027027 0.3827027027 0.0751351351 0.0216216216 0.0178378378
1964 1.87 0.951 0.704 0.136 0.042 0.037 0.5085561497 0.3764705882 0.0727272727 0.022459893 0.0197860963
1965 1.802 0.928 0.67 0.13 0.04 0.033 0.5149833518 0.371809101 0.0721420644 0.0221975583 0.0183129856
1966 1.798 0.957 0.647 0.123 0.039 0.033 0.5322580645 0.3598442714 0.0684093437 0.0216907675 0.0183537264
1967 1.77 0.962 0.619 0.117 0.037 0.035 0.5435028249 0.3497175141 0.0661016949 0.0209039548 0.0197740113
1968 1.739 0.958 0.601 0.112 0.035 0.034 0.5508913168 0.3456009201 0.0644048304 0.0201265095 0.0195514664
1969 1.673 0.932 0.568 0.107 0.035 0.031 0.5570830843 0.3395098625 0.0639569635 0.0209205021 0.0185295876
Maximum 2.084 0.982 0.803 0.218 0.088 0.093 0.5570830843 0.3894065718 0.1073891626 0.0433497537 0.0458128079
Minimum 1.673 0.904 0.568 0.107 0.035 0.031 0.445320197 0.3395098625 0.0639569635 0.0201265095 0.0176856998
Average (arithmetic mean) 1.9824736842 0.9509210526 0.7469210526 0.1793157895 0.0569736842 0.0483684211 0.4810392324 0.376352542 0.08984775 0.0285321378 0.0242435155
Geometric mean 1.9794828378 0.9506652299 0.7445349304 0.1759628065 0.0550531291 0.0459471078 0.4802593949 0.3761259841 0.0888933226 0.0278118749 0.0232116727
Median 2.0275 0.958 0.766 0.1895 0.054 0.041 0.4740529849 0.3825064988 0.0919239195 0.026386868 0.0201871195
Standard deviation 0.1074167778 0.022244807 0.0578008611 0.0329562407 0.0152448252 0.0170300546 0.0283528766 0.0130472148 0.0128033392 0.0067801498 0.0079723667
Slope for best linear fit (using linear regression) -0.0074747784 0.0008170478 -0.0027767808 -0.0027961484 -0.0013422694 -0.0013692964 0.0023425317 -3.91684312854444E-005 -0.0011153008 -0.000580074 -0.0006039945
Multiplier for best logarithmic fit (using linear regression on logarithm) 0.9960982166 1.0008733528 0.9959573976 0.9832806243 0.9766483165 0.9740310996 1.0047938407 0.9998586294 0.9871322003 0.9804739134 0.9778464446
R^2 for linear regression 0.5980250317 0.1666113652 0.2850240752 0.8890210677 0.9574176682 0.7984170886 0.8430311801 0.0011130218 0.9371400019 0.9039724735 0.7088565411

Parity progression ratios

Cohort PPR from 0 to 1 PPR from 1 to 2 PPR from 2 to 3 PPR from 3 to 4
1932 0.906 0.806 0.302 0.405
1933 0.914 0.807 0.293 0.402
1934 0.918 0.805 0.287 0.397
1935 0.918 0.806 0.283 0.392
1936 0.919 0.815 0.28 0.386
1937 0.921 0.82 0.278 0.375
1938 0.924 0.818 0.278 0.364
1939 0.934 0.816 0.279 0.352
1940 0.954 0.814 0.28 0.339
1941 0.963 0.812 0.278 0.325
1942 0.966 0.815 0.273 0.314
1943 0.959 0.824 0.266 0.308
1944 0.967 0.82 0.26 0.301
1945 0.971 0.816 0.254 0.296
1946 0.96 0.826 0.249 0.297
1947 0.959 0.83 0.243 0.297
1948 0.973 0.82 0.24 0.294
1949 0.984 0.818 0.238 0.293
1950 0.976 0.819 0.24 0.285
1951 0.963 0.827 0.242 0.283
1952 0.966 0.816 0.238 0.283
1953 0.971 0.812 0.233 0.286
1954 0.975 0.81 0.231 0.287
1955 0.969 0.808 0.231 0.283
1956 0.976 0.805 0.231 0.276
1957 0.981 0.803 0.23 0.285
1958 0.981 0.789 0.223 0.28
1959 0.975 0.781 0.218 0.292
Maximum 0.984 0.83 0.302 0.405
Minimum 0.906 0.781 0.218 0.276
Average (arithmetic mean) 0.9551071429 0.8127857143 0.2563571429 0.3206071429
Geometric mean 0.954801055 0.8127182557 0.25525601 0.3178681571
Median 0.9645 0.815 0.2515 0.297
Standard deviation 0.0244590955 0.0106122122 0.02426736 0.0440877402
Slope for best linear fit (using linear regression) 0.0026193213 -0.0003661741 -0.0028872469 -0.0048814997
Multiplier for best logarithmic fit (using linear regression on logarithm) 1.0027707189 0.9995405017 0.9888085231 0.9854151959
R^2 for linear regression 0.7760175494 0.0805634533 0.9578501032 0.8295558765