Fertility & birth rates in Bulgaria and Tanzania

Fertility rate in Bulgaria vs Tanzania by year

Chart Table

Bulgaria

Tanzania

1x

Year	Fertility rate
	Bulgaria	Tanzania
2023	1.81	4.61
2022	1.78	4.67
2021	1.8	4.73
2020	1.77	4.8
2019	1.79	4.87
2018	1.73	4.93
2017	1.71	4.99
2016	1.67	5.01
2015	1.64	5.03
2014	1.62	5.12
2013	1.54	5.16
2012	1.5	5.14
2011	1.51	5.14
2010	1.57	5.23
2009	1.66	5.26
2008	1.56	5.32
2007	1.49	5.4
2006	1.44	5.51
2005	1.37	5.58
2004	1.33	5.6
2003	1.26	5.58
2002	1.23	5.57
2001	1.21	5.62
2000	1.26	5.67
1999	1.23	5.75
1998	1.11	5.81
1997	1.09	5.84
1996	1.23	5.83
1995	1.23	5.82
1994	1.37	5.89
1993	1.46	6
1992	1.55	6.08
1991	1.66	6.14
1990	1.82	6.2
1989	1.9	6.3
1988	1.97	6.38
1987	1.96	6.41
1986	2.02	6.49
1985	1.97	6.6
1984	2.01	6.72
1983	2.01	6.81
1982	2.01	6.87
1981	2	6.93
1980	2.05	6.99
1979	2.16	7.04
1978	2.15	7.06
1977	2.21	7.07
1976	2.24	7.09
1975	2.23	7.1
1974	2.29	7.12
1973	2.15	7.06
1972	2.03	7.05
1971	2.1	7.04
1970	2.17	7
1969	2.27	6.95
1968	2.27	6.9
1967	2.02	6.86
1966	2.03	6.8
1965	2.09	6.73
1964	2.19	6.68
1963	2.21	6.65
1962	2.24	6.61
1961	2.29	6.56
1960	2.31	6.54

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 4.61 in Tanzania in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Bulgaria

Tanzania

1x

Year	Natural population change
	Bulgaria	Tanzania
2023	-43,837	1,960,623
2022	-62,065	1,927,960
2021	-90,452	1,880,137
2020	-65,507	1,861,377
2019	-46,317	1,816,669
2018	-46,304	1,777,852
2017	-45,583	1,726,909
2016	-42,744	1,659,502
2015	-44,699	1,592,882
2014	-41,027	1,565,630
2013	-37,948	1,509,008
2012	-40,183	1,439,325
2011	-37,477	1,384,886
2010	-34,759	1,363,477
2009	-26,800	1,332,015
2008	-32,967	1,303,728
2007	-37,727	1,278,285
2006	-39,526	1,257,927
2005	-42,124	1,224,165
2004	-40,128	1,175,379
2003	-44,319	1,118,435
2002	-46,240	1,063,195
2001	-44,050	1,026,242
2000	-41,668	985,185
1999	-39,411	948,659
1998	-52,844	920,806
1997	-58,185	882,544
1996	-45,159	868,524
1995	-42,030	838,980
1994	-32,086	803,953
1993	-24,569	778,044
1992	-18,789	767,961
1991	-14,675	762,011
1990	-3,487	750,825
1989	5,326	743,854
1988	9,879	736,551
1987	8,971	718,580
1986	16,125	705,677
1985	11,649	697,867
1984	20,610	687,435
1983	21,455	679,720
1982	24,077	662,627
1981	29,341	645,496
1980	30,129	629,444
1979	40,599	613,388
1978	44,070	595,024
1977	47,543	574,938
1976	56,055	553,617
1975	54,941	533,906
1974	64,223	515,152
1973	57,760	488,429
1972	47,169	467,305
1971	52,925	449,014
1970	61,125	427,988
1969	63,256	408,322
1968	69,468	389,467
1967	49,861	374,763
1966	54,504	360,229
1965	58,249	343,456
1964	66,783	328,527
1963	66,241	314,644
1962	64,104	300,663
1961	75,460	286,839
1960	76,314	275,814

The chart above illustrates the comparison of the absolute yearly changes in population resulting from births and deaths.

Excluding migration, the natural population change due to births and deaths from 2022 to 2023 was -0.68% in Bulgaria and +2.94% in Tanzania.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +3.05% in Tanzania.

Birth rate in Bulgaria vs Tanzania by year

Chart Table

Bulgaria

Tanzania

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Bulgaria	Tanzania
2023	8.9	35.2
2022	8.8	35.6
2021	9	36
2020	9	36.4
2019	9.3	36.9
2018	9.3	37.3
2017	9.4	37.6
2016	9.4	37.6
2015	9.4	37.6
2014	9.6	38.4
2013	9.3	38.4
2012	9.5	38.1
2011	9.6	38.1
2010	10.2	38.8
2009	10.9	39.2
2008	10.4	39.6
2007	10	40.2
2006	9.7	41
2005	9.3	41.5
2004	9.1	41.5
2003	8.7	41.3
2002	8.5	41.2
2001	8.5	41.4
2000	9	41.5
1999	8.8	41.8
1998	7.9	42.1
1997	7.7	42.1
1996	8.6	42.3
1995	8.6	41.9
1994	9.4	41.5
1993	10	41.7
1992	10.4	42.3
1991	11.1	42.7
1990	12.1	43
1989	12.6	43.5
1988	13.1	44
1987	13	44.3
1986	13.4	44.9
1985	13.3	45.7
1984	13.6	46.4
1983	13.8	47.1
1982	13.9	47.5
1981	14	47.9
1980	14.5	48.3
1979	15.3	48.8
1978	15.5	49.2
1977	16.1	49.5
1976	16.5	49.8
1975	16.6	50.2
1974	17.2	50.6
1973	16.2	50.3
1972	15.3	50.4
1971	15.9	50.6
1970	16.3	50.4
1969	17	50.3
1968	16.9	50.2
1967	15	50.3
1966	14.9	50.2
1965	15.3	49.9
1964	16.1	49.8
1963	16.4	49.7
1962	16.7	49.4
1961	17.4	49.1
1960	17.8	49

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 35.2 in Tanzania, compared with 17.8 and 49, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Bulgaria

Factual

UN forecast

Tanzania

Factual

UN forecast

1x

Year	Young
	Bulgaria	Tanzania
2100	13%	23.4%
2099	13.1%	23.6%
2098	13.1%	23.8%
2097	13.1%	23.9%
2096	13.2%	24.1%
2095	13.2%	24.3%
2094	13.3%	24.5%
2093	13.4%	24.7%
2092	13.4%	24.8%
2091	13.4%	25%
2090	13.5%	25.2%
2089	13.5%	25.4%
2088	13.6%	25.6%
2087	13.6%	25.8%
2086	13.6%	26%
2085	13.6%	26.2%
2084	13.6%	26.4%
2083	13.6%	26.6%
2082	13.6%	26.8%
2081	13.6%	27.1%
2080	13.6%	27.3%
2079	13.6%	27.5%
2078	13.6%	27.7%
2077	13.6%	28%
2076	13.6%	28.2%
2075	13.5%	28.4%
2074	13.5%	28.7%
2073	13.5%	28.9%
2072	13.5%	29.1%
2071	13.5%	29.4%
2070	13.5%	29.6%
2069	13.6%	29.8%
2068	13.6%	30.1%
2067	13.6%	30.3%
2066	13.6%	30.6%
2065	13.6%	30.8%
2064	13.7%	31.1%
2063	13.7%	31.3%
2062	13.7%	31.6%
2061	13.8%	31.9%
2060	13.8%	32.1%
2059	13.8%	32.4%
2058	13.9%	32.7%
2057	13.9%	32.9%
2056	13.9%	33.2%
2055	13.9%	33.5%
2054	13.9%	33.8%
2053	13.9%	34.1%
2052	13.9%	34.3%
2051	13.8%	34.6%
2050	13.8%	34.9%
2049	13.8%	35.2%
2048	13.7%	35.5%
2047	13.7%	35.8%
2046	13.6%	36.1%
2045	13.6%	36.4%
2044	13.6%	36.7%
2043	13.6%	37%
2042	13.6%	37.3%
2041	13.6%	37.6%
2040	13.6%	37.9%
2039	13.6%	38.3%
2038	13.7%	38.6%
2037	13.7%	39%
2036	13.7%	39.3%
2035	13.7%	39.6%
2034	13.8%	40%
2033	13.8%	40.3%
2032	13.9%	40.7%
2031	14%	41%
2030	14.1%	41.3%
2029	14.2%	41.6%
2028	14.2%	41.8%
2027	14.3%	42.1%
2026	14.4%	42.2%
2025	14.4%	42.4%
2024	14.5%	42.5%
2023	14.5%	42.7%
2022	14.5%	42.9%
2021	14.5%	43.1%
2020	14.4%	43.4%
2019	14.4%	43.6%
2018	14.3%	43.8%
2017	14.2%	44%
2016	14%	44.2%
2015	13.9%	44.5%
2014	13.8%	44.8%
2013	13.7%	44.9%
2012	13.6%	45.1%
2011	13.5%	45.2%
2010	13.5%	45.3%
2009	13.4%	45.3%
2008	13.3%	45.1%
2007	13.4%	45%
2006	13.5%	44.9%
2005	13.7%	44.8%
2004	14%	44.7%
2003	14.4%	44.6%
2002	14.8%	44.6%
2001	15.2%	44.5%
2000	15.7%	44.6%
1999	16.1%	44.7%
1998	16.5%	44.7%
1997	17%	44.8%
1996	17.4%	44.7%
1995	17.9%	44.5%
1994	18.3%	44.9%
1993	18.8%	45.5%
1992	19.3%	46%
1991	19.8%	46.2%
1990	20.3%	46.3%
1989	20.8%	46.5%
1988	21.1%	46.7%
1987	21.3%	46.9%
1986	21.4%	47.2%
1985	21.6%	47.4%
1984	21.8%	47.5%
1983	22%	47.6%
1982	22.1%	47.5%
1981	22.1%	47.4%
1980	22.1%	47.2%
1979	22.1%	46.9%
1978	22.2%	46.7%
1977	22.2%	46.6%
1976	22.3%	46.5%
1975	22.3%	46.4%
1974	22.2%	46.3%
1973	22.3%	46.2%
1972	22.4%	46.1%
1971	22.6%	46.1%
1970	22.8%	46%
1969	23%	45.9%
1968	23.2%	45.8%
1967	23.4%	45.6%
1966	23.8%	45.4%
1965	24.2%	45.2%
1964	24.7%	45%
1963	25.1%	44.8%
1962	25.4%	44.8%
1961	25.8%	44.8%
1960	26.1%	44.9%

Children aged 0-14 make up 14.5% of the population in Bulgaria and 42.5% in Tanzania in 2024, compared to 20.3% and 46.3% respectively in 1990.

Demographics of Bulgaria and Tanzania compared.

Maternal mortality chart: Bulgaria vs Tanzania

Chart Table

Bulgaria

Tanzania

1x

Year	Maternal mortality per 100K births
	Bulgaria	Tanzania
2023	6	276
2022	10	152
2021	9	162
2020	9	160
2019	6	292
2018	7	319
2017	7	345
2016	7	396
2015	7	433
2014	7	454
2013	7	479
2012	7	448
2011	8	475
2010	9	486
2009	9	502
2008	10	511
2007	11	453
2006	12	366
2005	13	350
2004	14	365
2003	14	397
2002	15	454
2001	17	493
2000	19	568
1999	20	635
1998	20	739
1997	23	777
1996	22	775
1995	23	797
1994	25	816
1993	23	851
1992	25	864
1991	25	873
1990	27	900
1989	25	927
1988	26	949
1987	25	964
1986	25	971
1985	26	980

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 6 deaths per 100,000 live births in Bulgaria, compared to 276 deaths in Tanzania.

Under-five mortality rates

Chart Table

Bulgaria

Tanzania

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Bulgaria	Tanzania
2023	0.61%	3.89%
2022	0.62%	4.05%
2021	0.63%	4.22%
2020	0.65%	4.42%
2019	0.67%	4.6%
2018	0.7%	4.8%
2017	0.73%	5.02%
2016	0.77%	5.25%
2015	0.82%	5.48%
2014	0.87%	5.67%
2013	0.93%	5.95%
2012	0.99%	6.21%
2011	1.04%	6.5%
2010	1.08%	6.86%
2009	1.12%	7.24%
2008	1.14%	7.7%
2007	1.18%	8.16%
2006	1.24%	8.69%
2005	1.33%	9.24%
2004	1.42%	9.86%
2003	1.51%	10.5%
2002	1.6%	11.3%
2001	1.68%	12.1%
2000	1.75%	12.8%
1999	1.82%	13.6%
1998	1.89%	14.2%
1997	1.93%	14.8%
1996	1.94%	15.2%
1995	1.92%	15.6%
1994	1.91%	15.9%
1993	1.92%	16.1%
1992	1.92%	16.3%
1991	1.89%	16.5%
1990	1.83%	16.7%
1989	1.79%	16.9%
1988	1.78%	17.2%
1987	1.8%	17.4%
1986	1.87%	17.6%
1985	1.97%	17.7%
1984	2.07%	17.8%
1983	2.15%	17.8%
1982	2.22%	17.8%
1981	2.3%	17.8%
1980	2.38%	17.9%
1979	2.49%	18.1%
1978	2.6%	18.4%
1977	2.72%	18.8%
1976	2.8%	19.2%
1975	2.86%	19.6%
1974	2.91%	20.1%
1973	2.95%	20.5%
1972	3.01%	20.9%
1971	3.11%	21.2%
1970	3.25%	21.6%
1969	3.4%	21.9%
1968	3.54%	22.2%
1967	3.64%	22.5%
1966	3.7%	22.8%
1965	3.75%	23.1%
1964	3.86%	23.4%
1963	4.08%	23.6%
1962	4.43%	23.8%
1961	4.89%	24%
1960	5.47%	24.2%

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 3.89% in Tanzania. Above is a chart with historical data on under-five mortality rates.