Fertility & birth rates in Brunei and Kazakhstan

Fertility rate in Brunei vs Kazakhstan chart

According to the latest available data on birth rates, the fertility rate in Brunei was 1.75 children per woman in 2023, compared to 3.01 in Kazakhstan in 2023. The replacement level is considered to be 2.1 children per woman.

Check Brunei vs Kazakhstan population clock for a dynamic visualization of the changing population.

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Brunei	Kazakhstan
1960	7.32	4.5
1961	7.19	4.42
1962	7.03	4.36
1963	6.89	4.26
1964	6.77	4.07
1965	6.65	3.88
1966	6.51	3.82
1967	6.37	3.77
1968	6.2	3.63
1969	6.01	3.51
1970	5.8	3.51
1971	5.62	3.53
1972	5.5	3.55
1973	5.36	3.51
1974	5.18	3.45
1975	4.99	3.4
1976	4.78	3.33
1977	4.58	3.26
1978	4.39	3.16
1979	4.22	3.14
1980	4.07	3.09
1981	3.94	3.05
1982	3.84	3.02
1983	3.75	3.07
1984	3.68	3.15
1985	3.61	3.21
1986	3.55	3.19
1987	3.49	3.12
1988	3.44	3
1989	3.36	2.87
1990	3.29	2.75
1991	3.21	2.68
1992	3.11	2.58
1993	3.01	2.48
1994	2.9	2.38
1995	2.79	2.25
1996	2.68	2.08
1997	2.6	1.97
1998	2.53	1.94
1999	2.46	1.9
2000	2.4	1.9
2001	2.34	1.91
2002	2.26	1.96
2003	2.19	2.08
2004	2.1	2.2
2005	2.02	2.27
2006	1.97	2.38
2007	1.93	2.49
2008	1.92	2.62
2009	1.92	2.58
2010	1.94	2.61
2011	1.96	2.61
2012	1.97	2.64
2013	1.98	2.67
2014	1.97	2.76
2015	1.95	2.76
2016	1.92	2.8
2017	1.88	2.75
2018	1.85	2.85
2019	1.82	2.89
2020	1.8	3.13
2021	1.78	3.32
2022	1.76	3.05
2023	1.75	3.01
2024	1.73	2.98
2025	1.71	2.95
2026	1.7	2.92
2027	1.68	2.9
2028	1.68	2.87
2029	1.67	2.84
2030	1.66	2.81
2031	1.65	2.78
2032	1.65	2.76
2033	1.65	2.74
2034	1.64	2.71
2035	1.64	2.69
2036	1.64	2.66
2037	1.64	2.64
2038	1.64	2.62
2039	1.63	2.6
2040	1.63	2.58
2041	1.63	2.56
2042	1.63	2.54
2043	1.62	2.52
2044	1.62	2.5
2045	1.62	2.48
2046	1.62	2.47
2047	1.62	2.44
2048	1.62	2.43
2049	1.62	2.41
2050	1.61	2.39

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Brunei	Kazakhstan
1960	44.1%	37.2%
1961	45.2%	38%
1962	46.1%	38.4%
1963	46.6%	38.5%
1964	46.6%	38.4%
1965	46.5%	38.1%
1966	46%	37.8%
1967	45.4%	37.4%
1968	44.8%	37%
1969	44.2%	36.5%
1970	43.6%	36.1%
1971	43.3%	35.6%
1972	43%	35.2%
1973	42.6%	34.7%
1974	42%	34.1%
1975	41.3%	33.6%
1976	40.6%	33.3%
1977	39.9%	33.1%
1978	39.3%	32.8%
1979	38.9%	32.9%
1980	38.5%	33%
1981	38.1%	32.8%
1982	37.6%	32.7%
1983	36.9%	32.6%
1984	36.3%	32.6%
1985	35.7%	32.6%
1986	35.2%	32.6%
1987	34.9%	32.4%
1988	34.7%	32.1%
1989	34.6%	31.9%
1990	34.4%	31.7%
1991	34.4%	31.6%
1992	34.3%	31.4%
1993	34.1%	31.1%
1994	33.7%	30.8%
1995	33.3%	30.5%
1996	32.7%	30.1%
1997	32.2%	29.6%
1998	31.6%	29%
1999	31%	28.3%
2000	30.3%	27.6%
2001	29.6%	26.9%
2002	28.9%	26.2%
2003	28.1%	25.6%
2004	27.4%	25.1%
2005	26.7%	24.8%
2006	25.9%	24.7%
2007	25.5%	24.7%
2008	25.5%	24.9%
2009	25.4%	25.1%
2010	25.3%	25.4%
2011	25.2%	25.7%
2012	24.9%	26.2%
2013	24.5%	26.7%
2014	24%	27.2%
2015	23.6%	27.7%
2016	23.1%	28.1%
2017	22.7%	28.5%
2018	22.3%	28.8%
2019	21.9%	29%
2020	21.6%	29.2%
2021	21.3%	29.5%
2022	21.2%	29.6%
2023	21%	29.5%
2024	20.8%	29.4%
2025	20.6%	29.1%
2026	20.4%	28.9%
2027	20.1%	28.5%
2028	19.8%	28.2%
2029	19.5%	27.9%
2030	19.1%	27.5%
2031	18.8%	27.1%
2032	18.5%	26.8%
2033	18.2%	26.5%
2034	18%	26.1%
2035	17.7%	25.8%
2036	17.5%	25.4%
2037	17.2%	25%
2038	17%	24.8%
2039	16.8%	24.7%
2040	16.6%	24.6%
2041	16.4%	24.5%
2042	16.3%	24.5%
2043	16.1%	24.6%
2044	16%	24.6%
2045	15.9%	24.6%
2046	15.8%	24.7%
2047	15.7%	24.7%
2048	15.7%	24.7%
2049	15.6%	24.7%
2050	15.6%	24.7%

Children aged 0-14 make up 20.8% of the population in Brunei and 29.4% in Kazakhstan in 2024, compared to 34.4% and 31.7% respectively in 1990.

Demographics of Brunei and Kazakhstan compared.

Natural population change in Brunei vs Kazakhstan by year

For the past 10 years, the annual natural population change (excluding migration) has been +1.01% in Brunei and +1.44% in Kazakhstan. 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
	Brunei	Kazakhstan
1960	3,168	226,027
1961	3,175	228,686
1962	3,128	228,177
1963	3,195	223,105
1964	3,264	208,899
1965	3,326	194,470
1966	3,403	191,506
1967	3,477	191,536
1968	3,551	186,254
1969	3,618	184,118
1970	3,694	191,775
1971	3,880	202,450
1972	4,085	212,319
1973	4,216	215,940
1974	4,334	217,668
1975	4,431	219,748
1976	4,518	221,992
1977	4,594	224,284
1978	4,668	225,895
1979	4,717	237,442
1980	4,775	238,977
1981	4,839	243,652
1982	4,931	246,983
1983	5,138	260,471
1984	5,373	278,485
1985	5,620	293,834
1986	5,826	295,818
1987	6,017	290,227
1988	6,135	275,278
1989	6,202	254,394
1990	6,265	235,113
1991	6,259	221,581
1992	6,169	204,785
1993	6,045	185,649
1994	5,907	165,631
1995	5,750	140,721
1996	5,606	112,384
1997	5,518	92,778
1998	5,466	85,735
1999	5,388	79,536
2000	5,331	80,699
2001	5,275	84,279
2002	5,169	93,564
2003	5,034	112,137
2004	4,874	132,286
2005	4,703	146,619
2006	4,590	166,480
2007	4,521	188,486
2008	4,624	214,169
2009	4,789	218,036
2010	5,003	230,479
2011	5,242	237,883
2012	5,349	249,987
2013	5,302	259,239
2014	5,206	274,406
2015	5,060	273,523
2016	4,876	277,878
2017	4,685	268,066
2018	4,502	278,917
2019	4,335	278,788
2020	4,188	272,458
2021	3,985	269,026
2022	3,319	277,019
2023	3,837	273,013

Maternal mortality chart: Brunei vs Kazakhstan

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 36 deaths per 100,000 live births in Brunei, compared to 10 deaths in Kazakhstan.

Table

Year	Maternal mortality per 100K births
	Brunei	Kazakhstan
1985	79	68
1986	78	67
1987	75	66
1988	73	65
1989	71	64
1990	68	64
1991	65	64
1992	62	65
1993	59	67
1994	58	70
1995	55	72
1996	54	72
1997	52	71
1998	51	68
1999	50	63
2000	48	58
2001	46	53
2002	46	48
2003	45	45
2004	44	41
2005	43	38
2006	42	35
2007	41	32
2008	40	28
2009	40	25
2010	40	22
2011	40	19
2012	40	17
2013	40	15
2014	40	14
2015	39	13
2016	39	12
2017	39	12
2018	39	11
2019	38	11
2020	39	18
2021	44	23
2022	88	14
2023	36	10

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.94% in Brunei and 0.96% in Kazakhstan. 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
	Brunei	Kazakhstan
1960	8.9%	-
1961	8.24%	-
1962	7.66%	-
1963	7.15%	-
1964	6.7%	-
1965	6.32%	-
1966	5.98%	-
1967	5.69%	-
1968	5.42%	-
1969	5.16%	-
1970	4.91%	-
1971	4.64%	8.54%
1972	4.35%	8.33%
1973	4.06%	8.14%
1974	3.77%	7.96%
1975	3.49%	7.8%
1976	3.21%	7.66%
1977	2.95%	7.53%
1978	2.71%	7.39%
1979	2.48%	7.24%
1980	2.28%	7.05%
1981	2.09%	6.83%
1982	1.93%	6.6%
1983	1.79%	6.38%
1984	1.67%	6.16%
1985	1.57%	5.94%
1986	1.48%	5.73%
1987	1.42%	5.54%
1988	1.38%	5.37%
1989	1.35%	5.23%
1990	1.33%	5.16%
1991	1.32%	5.13%
1992	1.31%	5.16%
1993	1.3%	5.23%
1994	1.27%	5.28%
1995	1.23%	5.26%
1996	1.19%	5.16%
1997	1.15%	4.99%
1998	1.1%	4.76%
1999	1.07%	4.51%
2000	1.03%	4.25%
2001	1%	3.99%
2002	0.98%	3.76%
2003	0.96%	3.54%
2004	0.95%	3.33%
2005	0.95%	3.12%
2006	0.95%	2.9%
2007	0.95%	2.69%
2008	0.96%	2.47%
2009	0.96%	2.25%
2010	0.97%	2.04%
2011	0.98%	1.83%
2012	0.99%	1.63%
2013	0.99%	1.46%
2014	1%	1.3%
2015	1%	1.19%
2016	1%	1.1%
2017	1%	1.05%
2018	0.99%	1.03%
2019	0.98%	1.02%
2020	0.97%	1.01%
2021	0.96%	1%
2022	0.95%	0.98%
2023	0.94%	0.96%