Fertility & birth rates in Bulgaria and Saint Kitts and Nevis

Fertility rate in Bulgaria vs Saint Kitts and Nevis chart

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 1.51 in Saint Kitts and Nevis in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs Saint Kitts and Nevis population clock for a dynamic visualization of the changing population.

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Bulgaria	Saint Kitts
1960	2.31	6.54
1961	2.29	6.27
1962	2.24	6.06
1963	2.21	6.12
1964	2.19	6.08
1965	2.09	6.01
1966	2.03	5.78
1967	2.02	5.46
1968	2.27	5.17
1969	2.27	4.97
1970	2.17	4.73
1971	2.1	4.51
1972	2.03	4.16
1973	2.15	3.97
1974	2.29	3.81
1975	2.23	3.68
1976	2.24	3.59
1977	2.21	3.48
1978	2.15	3.29
1979	2.16	3.23
1980	2.05	3.26
1981	2	3.3
1982	2.01	3.18
1983	2.01	3.1
1984	2.01	2.88
1985	1.97	2.82
1986	2.02	2.68
1987	1.96	2.62
1988	1.97	2.62
1989	1.9	2.69
1990	1.82	2.73
1991	1.66	2.6
1992	1.55	2.43
1993	1.46	2.38
1994	1.37	2.31
1995	1.23	2.3
1996	1.23	2.26
1997	1.09	2.3
1998	1.11	2.31
1999	1.23	2.26
2000	1.26	2.13
2001	1.21	2.08
2002	1.23	2.04
2003	1.26	2
2004	1.33	1.96
2005	1.37	1.93
2006	1.44	1.9
2007	1.49	1.87
2008	1.56	1.83
2009	1.66	1.8
2010	1.57	1.76
2011	1.51	1.74
2012	1.5	1.71
2013	1.54	1.68
2014	1.62	1.67
2015	1.64	1.64
2016	1.67	1.63
2017	1.71	1.61
2018	1.73	1.59
2019	1.79	1.57
2020	1.77	1.55
2021	1.8	1.53
2022	1.78	1.51
2023	1.81	1.51
2024	1.81	1.53
2025	1.8	1.51
2026	1.8	1.5
2027	1.8	1.49
2028	1.8	1.49
2029	1.79	1.49
2030	1.79	1.48
2031	1.79	1.48
2032	1.79	1.48
2033	1.79	1.48
2034	1.79	1.48
2035	1.78	1.48
2036	1.78	1.48
2037	1.78	1.49
2038	1.77	1.49
2039	1.77	1.49
2040	1.77	1.49
2041	1.77	1.49
2042	1.77	1.49
2043	1.76	1.5
2044	1.76	1.5
2045	1.76	1.5
2046	1.76	1.5
2047	1.76	1.5
2048	1.76	1.5
2049	1.76	1.5
2050	1.76	1.5

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Bulgaria	Saint Kitts
1960	26.1%	45.6%
1961	25.8%	45.7%
1962	25.4%	45.8%
1963	25.1%	46%
1964	24.7%	46.1%
1965	24.2%	46.3%
1966	23.8%	46.6%
1967	23.4%	47%
1968	23.2%	47.4%
1969	23%	47.7%
1970	22.8%	47.2%
1971	22.6%	45.8%
1972	22.4%	44.3%
1973	22.3%	42.9%
1974	22.2%	41.6%
1975	22.3%	40.5%
1976	22.3%	39.6%
1977	22.2%	38.8%
1978	22.2%	38.2%
1979	22.1%	37.6%
1980	22.1%	36.9%
1981	22.1%	36.2%
1982	22.1%	35.6%
1983	22%	35.1%
1984	21.8%	34.7%
1985	21.6%	34.5%
1986	21.4%	34.3%
1987	21.3%	34.2%
1988	21.1%	34.1%
1989	20.8%	34.1%
1990	20.3%	34.2%
1991	19.8%	34.1%
1992	19.3%	33.6%
1993	18.8%	32.9%
1994	18.3%	32.3%
1995	17.9%	31.7%
1996	17.4%	31.1%
1997	17%	30.6%
1998	16.5%	30.1%
1999	16.1%	29.7%
2000	15.7%	29.3%
2001	15.2%	28.8%
2002	14.8%	28.1%
2003	14.4%	27.4%
2004	14%	26.6%
2005	13.7%	26%
2006	13.5%	25.3%
2007	13.4%	24.8%
2008	13.3%	24.4%
2009	13.4%	24%
2010	13.5%	23.3%
2011	13.5%	22.7%
2012	13.6%	22.2%
2013	13.7%	21.7%
2014	13.8%	21.1%
2015	13.9%	20.6%
2016	14%	20.2%
2017	14.2%	19.9%
2018	14.3%	19.6%
2019	14.4%	19.3%
2020	14.4%	19.1%
2021	14.5%	18.8%
2022	14.5%	18.6%
2023	14.5%	18.3%
2024	14.5%	18.2%
2025	14.4%	18.3%
2026	14.3%	18.4%
2027	14.3%	18.2%
2028	14.2%	17.9%
2029	14.1%	17.7%
2030	14%	17.5%
2031	14%	17.2%
2032	13.9%	17%
2033	13.8%	16.8%
2034	13.8%	16.5%
2035	13.7%	16.3%
2036	13.7%	16.1%
2037	13.7%	15.9%
2038	13.6%	15.7%
2039	13.6%	15.5%
2040	13.6%	15.4%
2041	13.6%	15.2%
2042	13.6%	15.1%
2043	13.6%	15%
2044	13.6%	14.8%
2045	13.6%	14.7%
2046	13.7%	14.6%
2047	13.7%	14.5%
2048	13.7%	14.5%
2049	13.8%	14.4%
2050	13.8%	14.3%

Children aged 0-14 make up 14.5% of the population in Bulgaria and 18.2% in Saint Kitts and Nevis in 2024, compared to 20.3% and 34.2% respectively in 1990.

Demographics of Bulgaria and Saint Kitts and Nevis compared.

Natural population change in Bulgaria vs Saint Kitts and Nevis by year

For the past 10 years, the annual natural population change (excluding migration) has been -0.79% in Bulgaria and +0.26% in Saint Kitts and Nevis. The chart below illustrates the comparison of the absolute yearly changes resulting from births and deaths.

Table

Year	Population change due to births and deaths
	Bulgaria	Saint Kitts
1960	76,314	1,562
1961	75,460	1,466
1962	64,104	1,373
1963	66,241	1,360
1964	66,783	1,305
1965	58,249	1,228
1966	54,504	1,103
1967	49,861	951
1968	69,468	812
1969	63,256	708
1970	61,125	611
1971	52,925	615
1972	47,169	619
1973	57,760	646
1974	64,223	670
1975	54,941	688
1976	56,055	703
1977	47,543	697
1978	44,070	654
1979	40,599	643
1980	30,129	652
1981	29,341	684
1982	24,077	672
1983	21,455	664
1984	20,610	598
1985	11,649	574
1986	16,125	520
1987	8,971	486
1988	9,879	471
1989	5,326	476
1990	-3,487	471
1991	-14,675	411
1992	-18,789	369
1993	-24,569	373
1994	-32,086	370
1995	-42,030	382
1996	-45,159	379
1997	-58,185	405
1998	-52,844	415
1999	-39,411	413
2000	-41,668	376
2001	-44,050	369
2002	-46,240	365
2003	-44,319	369
2004	-40,128	365
2005	-42,124	361
2006	-39,526	355
2007	-37,727	341
2008	-32,967	322
2009	-26,800	300
2010	-34,759	274
2011	-37,477	250
2012	-40,183	246
2013	-37,948	227
2014	-41,027	213
2015	-44,699	197
2016	-42,744	185
2017	-45,583	169
2018	-46,304	150
2019	-46,317	135
2020	-65,507	98
2021	-90,452	-20
2022	-62,065	14
2023	-43,837	84

Maternal mortality chart: Bulgaria vs Saint Kitts and Nevis

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 74 deaths in Saint Kitts and Nevis.

Table

Year	Maternal mortality per 100K births
	Bulgaria	Saint Kitts
1985	26	290
1986	25	285
1987	25	302
1988	26	308
1989	25	316
1990	27	302
1991	25	280
1992	25	255
1993	23	225
1994	25	205
1995	23	204
1996	22	194
1997	23	194
1998	20	193
1999	20	164
2000	19	143
2001	17	131
2002	15	115
2003	14	111
2004	14	104
2005	13	102
2006	12	99
2007	11	96
2008	10	95
2009	9	93
2010	9	92
2011	8	90
2012	7	88
2013	7	82
2014	7	82
2015	7	76
2016	7	75
2017	7	74
2018	7	78
2019	6	74
2020	9	80
2021	9	111
2022	10	99
2023	6	74

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 1.63% in Saint Kitts and Nevis. Below is the historical data on under-five mortality rates.

Table

Year	Mortality rate before reaching 5 years of age, per 1,000 live births
	Bulgaria	Saint Kitts
1960	5.47%	-
1961	4.89%	-
1962	4.43%	-
1963	4.08%	-
1964	3.86%	-
1965	3.75%	-
1966	3.7%	-
1967	3.64%	-
1968	3.54%	-
1969	3.4%	-
1970	3.25%	-
1971	3.11%	-
1972	3.01%	-
1973	2.95%	6.16%
1974	2.91%	6.03%
1975	2.86%	5.91%
1976	2.8%	5.78%
1977	2.72%	5.64%
1978	2.6%	5.48%
1979	2.49%	5.29%
1980	2.38%	5.06%
1981	2.3%	4.81%
1982	2.22%	4.53%
1983	2.15%	4.26%
1984	2.07%	4%
1985	1.97%	3.76%
1986	1.87%	3.56%
1987	1.8%	3.39%
1988	1.78%	3.24%
1989	1.79%	3.12%
1990	1.83%	3.03%
1991	1.89%	2.96%
1992	1.92%	2.9%
1993	1.92%	2.85%
1994	1.91%	2.8%
1995	1.92%	2.76%
1996	1.94%	2.7%
1997	1.93%	2.64%
1998	1.89%	2.56%
1999	1.82%	2.48%
2000	1.75%	2.39%
2001	1.68%	2.29%
2002	1.6%	2.2%
2003	1.51%	2.11%
2004	1.42%	2.03%
2005	1.33%	1.97%
2006	1.24%	1.92%
2007	1.18%	1.89%
2008	1.14%	1.88%
2009	1.12%	1.87%
2010	1.08%	1.88%
2011	1.04%	1.89%
2012	0.99%	1.91%
2013	0.93%	1.93%
2014	0.87%	1.95%
2015	0.82%	1.94%
2016	0.77%	1.93%
2017	0.73%	1.9%
2018	0.7%	1.86%
2019	0.67%	1.82%
2020	0.65%	1.77%
2021	0.63%	1.72%
2022	0.62%	1.68%
2023	0.61%	1.63%