Fertility & birth rates in Brunei and Sri Lanka

Fertility rate in Brunei vs Sri Lanka 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 1.97 in Sri Lanka in 2023. The replacement level is considered to be 2.1 children per woman.

Check Brunei vs Sri Lanka 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	Sri Lanka
1960	7.32	5.35
1961	7.19	5.24
1962	7.03	5.18
1963	6.89	5.12
1964	6.77	5.06
1965	6.65	4.93
1966	6.51	4.83
1967	6.37	4.79
1968	6.2	4.66
1969	6.01	4.5
1970	5.8	4.39
1971	5.62	4.27
1972	5.5	4.16
1973	5.36	4
1974	5.18	3.86
1975	4.99	3.82
1976	4.78	3.78
1977	4.58	3.74
1978	4.39	3.81
1979	4.22	3.82
1980	4.07	3.73
1981	3.94	3.65
1982	3.84	3.32
1983	3.75	3.11
1984	3.68	3.01
1985	3.61	2.9
1986	3.55	2.74
1987	3.49	2.64
1988	3.44	2.57
1989	3.36	2.58
1990	3.29	2.54
1991	3.21	2.51
1992	3.11	2.49
1993	3.01	2.44
1994	2.9	2.4
1995	2.79	2.35
1996	2.68	2.29
1997	2.6	2.22
1998	2.53	2.14
1999	2.46	2.14
2000	2.4	2.21
2001	2.34	2.28
2002	2.26	2.31
2003	2.19	2.3
2004	2.1	2.27
2005	2.02	2.26
2006	1.97	2.29
2007	1.93	2.3
2008	1.92	2.23
2009	1.92	2.18
2010	1.94	2.13
2011	1.96	2.14
2012	1.97	2.17
2013	1.98	2.18
2014	1.97	2.13
2015	1.95	2.09
2016	1.92	2.06
2017	1.88	2.04
2018	1.85	2.03
2019	1.82	2.02
2020	1.8	2.01
2021	1.78	2
2022	1.76	1.98
2023	1.75	1.97
2024	1.73	1.95
2025	1.71	1.94
2026	1.7	1.93
2027	1.68	1.91
2028	1.68	1.9
2029	1.67	1.89
2030	1.66	1.88
2031	1.65	1.87
2032	1.65	1.86
2033	1.65	1.85
2034	1.64	1.85
2035	1.64	1.84
2036	1.64	1.83
2037	1.64	1.83
2038	1.64	1.82
2039	1.63	1.81
2040	1.63	1.81
2041	1.63	1.8
2042	1.63	1.8
2043	1.62	1.8
2044	1.62	1.79
2045	1.62	1.79
2046	1.62	1.79
2047	1.62	1.78
2048	1.62	1.78
2049	1.62	1.77
2050	1.61	1.77

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Brunei	Sri Lanka
1960	44.1%	41%
1961	45.2%	40.9%
1962	46.1%	40.8%
1963	46.6%	40.7%
1964	46.6%	40.6%
1965	46.5%	40.5%
1966	46%	40.4%
1967	45.4%	40.3%
1968	44.8%	40.1%
1969	44.2%	39.9%
1970	43.6%	39.7%
1971	43.3%	39.5%
1972	43%	39.2%
1973	42.6%	38.8%
1974	42%	38.4%
1975	41.3%	38%
1976	40.6%	37.6%
1977	39.9%	37.2%
1978	39.3%	36.9%
1979	38.9%	36.7%
1980	38.5%	36.4%
1981	38.1%	36.2%
1982	37.6%	36%
1983	36.9%	35.8%
1984	36.3%	35.5%
1985	35.7%	35.2%
1986	35.2%	34.6%
1987	34.9%	34%
1988	34.7%	33.5%
1989	34.6%	33%
1990	34.4%	32.5%
1991	34.4%	32.1%
1992	34.3%	31.4%
1993	34.1%	30.6%
1994	33.7%	29.9%
1995	33.3%	29.2%
1996	32.7%	28.6%
1997	32.2%	28.2%
1998	31.6%	27.8%
1999	31%	27.4%
2000	30.3%	27%
2001	29.6%	26.6%
2002	28.9%	26.3%
2003	28.1%	26.1%
2004	27.4%	26%
2005	26.7%	25.8%
2006	25.9%	25.7%
2007	25.5%	25.7%
2008	25.5%	25.6%
2009	25.4%	25.5%
2010	25.3%	25.4%
2011	25.2%	25.3%
2012	24.9%	25.2%
2013	24.5%	25%
2014	24%	24.9%
2015	23.6%	24.7%
2016	23.1%	24.5%
2017	22.7%	24.2%
2018	22.3%	24%
2019	21.9%	23.7%
2020	21.6%	23.3%
2021	21.3%	23%
2022	21.2%	22.7%
2023	21%	22.4%
2024	20.8%	22%
2025	20.6%	21.7%
2026	20.4%	21.4%
2027	20.1%	21.1%
2028	19.8%	20.8%
2029	19.5%	20.5%
2030	19.1%	20.2%
2031	18.8%	20%
2032	18.5%	19.8%
2033	18.2%	19.6%
2034	18%	19.4%
2035	17.7%	19.2%
2036	17.5%	19.1%
2037	17.2%	18.9%
2038	17%	18.8%
2039	16.8%	18.7%
2040	16.6%	18.6%
2041	16.4%	18.4%
2042	16.3%	18.3%
2043	16.1%	18.2%
2044	16%	18.1%
2045	15.9%	18%
2046	15.8%	17.9%
2047	15.7%	17.7%
2048	15.7%	17.6%
2049	15.6%	17.5%
2050	15.6%	17.3%

Children aged 0-14 make up 20.8% of the population in Brunei and 22% in Sri Lanka in 2024, compared to 34.4% and 32.5% respectively in 1990.

Demographics of Brunei and Sri Lanka compared.

Natural population change in Brunei vs Sri Lanka by year

For the past 10 years, the annual natural population change (excluding migration) has been +1.01% in Brunei and +0.75% in Sri Lanka. 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	Sri Lanka
1960	3,168	247,631
1961	3,175	251,087
1962	3,128	256,719
1963	3,195	262,880
1964	3,264	269,584
1965	3,326	272,422
1966	3,403	275,549
1967	3,477	284,738
1968	3,551	286,642
1969	3,618	286,218
1970	3,694	286,719
1971	3,880	281,200
1972	4,085	282,494
1973	4,216	278,577
1974	4,334	275,521
1975	4,431	282,496
1976	4,518	291,816
1977	4,594	300,038
1978	4,668	317,055
1979	4,717	329,791
1980	4,775	328,155
1981	4,839	328,096
1982	4,931	300,030
1983	5,138	277,768
1984	5,373	263,175
1985	5,620	247,836
1986	5,826	233,782
1987	6,017	226,414
1988	6,135	219,184
1989	6,202	212,401
1990	6,265	224,454
1991	6,259	218,117
1992	6,169	222,230
1993	6,045	226,257
1994	5,907	228,904
1995	5,750	221,957
1996	5,606	215,290
1997	5,518	208,193
1998	5,466	201,059
1999	5,388	206,876
2000	5,331	227,060
2001	5,275	244,377
2002	5,169	252,840
2003	5,034	252,008
2004	4,874	212,527
2005	4,703	248,683
2006	4,590	248,706
2007	4,521	248,287
2008	4,624	232,225
2009	4,789	200,175
2010	5,003	224,325
2011	5,242	224,461
2012	5,349	229,138
2013	5,302	221,021
2014	5,206	211,541
2015	5,060	201,815
2016	4,876	194,232
2017	4,685	187,993
2018	4,502	183,610
2019	4,335	172,243
2020	4,188	170,968
2021	3,985	121,858
2022	3,319	95,378
2023	3,837	66,111

Maternal mortality chart: Brunei vs Sri Lanka

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 18 deaths in Sri Lanka.

Table

Year	Maternal mortality per 100K births
	Brunei	Sri Lanka
1985	79	68
1986	78	66
1987	75	64
1988	73	62
1989	71	61
1990	68	59
1991	65	57
1992	62	54
1993	59	51
1994	58	49
1995	55	48
1996	54	47
1997	52	45
1998	51	43
1999	50	41
2000	48	39
2001	46	37
2002	46	36
2003	45	35
2004	44	37
2005	43	32
2006	42	32
2007	41	31
2008	40	30
2009	40	28
2010	40	26
2011	40	25
2012	40	24
2013	40	23
2014	40	23
2015	39	22
2016	39	22
2017	39	21
2018	39	21
2019	38	20
2020	39	23
2021	44	34
2022	88	22
2023	36	18

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.94% in Brunei and 0.61% in Sri Lanka. 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	Sri Lanka
1960	8.9%	9.41%
1961	8.24%	8.95%
1962	7.66%	8.66%
1963	7.15%	8.48%
1964	6.7%	8.3%
1965	6.32%	8.07%
1966	5.98%	7.81%
1967	5.69%	7.55%
1968	5.42%	7.32%
1969	5.16%	7.14%
1970	4.91%	7.02%
1971	4.64%	6.94%
1972	4.35%	6.86%
1973	4.06%	6.77%
1974	3.77%	6.62%
1975	3.49%	6.41%
1976	3.21%	6.12%
1977	2.95%	5.77%
1978	2.71%	5.38%
1979	2.48%	4.99%
1980	2.28%	4.63%
1981	2.09%	4.29%
1982	1.93%	3.98%
1983	1.79%	3.67%
1984	1.67%	3.35%
1985	1.57%	3.02%
1986	1.48%	2.74%
1987	1.42%	2.54%
1988	1.38%	2.41%
1989	1.35%	2.74%
1990	1.33%	2.33%
1991	1.32%	2.32%
1992	1.31%	2.29%
1993	1.3%	2.22%
1994	1.27%	2.14%
1995	1.23%	2.05%
1996	1.19%	1.95%
1997	1.15%	1.86%
1998	1.1%	1.76%
1999	1.07%	1.69%
2000	1.03%	1.63%
2001	1%	1.58%
2002	0.98%	1.55%
2003	0.96%	1.52%
2004	0.95%	2.88%
2005	0.95%	1.4%
2006	0.95%	1.33%
2007	0.95%	1.26%
2008	0.96%	1.2%
2009	0.96%	2.08%
2010	0.97%	1.12%
2011	0.98%	1.08%
2012	0.99%	1.03%
2013	0.99%	0.98%
2014	1%	0.92%
2015	1%	0.87%
2016	1%	0.83%
2017	1%	0.79%
2018	0.99%	0.76%
2019	0.98%	0.72%
2020	0.97%	0.69%
2021	0.96%	0.66%
2022	0.95%	0.64%
2023	0.94%	0.61%