Fertility & birth rates in San Marino and Sierra Leone

Fertility rate in San Marino vs Sierra Leone chart

According to the latest available data on birth rates, the fertility rate in San Marino was 1.15 children per woman in 2023, compared to 3.79 in Sierra Leone in 2023. The replacement level is considered to be 2.1 children per woman.

Check San Marino vs Sierra Leone population clock for a dynamic visualization of the changing population.

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	San Marino	Sierra Leone
1960	2.43	6.18
1961	2.68	6.21
1962	2.43	6.22
1963	2.4	6.26
1964	2.37	6.29
1965	2.33	6.31
1966	2.33	6.35
1967	2.31	6.38
1968	2.3	6.39
1969	2.31	6.39
1970	2.32	6.41
1971	2.33	6.43
1972	2.29	6.45
1973	2.23	6.47
1974	2.13	6.53
1975	2.05	6.55
1976	1.95	6.55
1977	1.87	6.57
1978	1.77	6.59
1979	1.63	6.58
1980	1.53	6.56
1981	1.41	6.55
1982	1.3	6.56
1983	1.25	6.57
1984	1.2	6.59
1985	1.17	6.59
1986	1.15	6.6
1987	1.14	6.61
1988	1.14	6.59
1989	1.15	6.57
1990	1.16	6.57
1991	1.17	6.55
1992	1.15	6.56
1993	1.12	6.57
1994	1.14	6.56
1995	1.17	6.56
1996	1.21	6.55
1997	1.24	6.53
1998	1.26	6.5
1999	1.29	6.42
2000	1.4	6.36
2001	1.52	6.31
2002	1.43	6.23
2003	1.3	6.09
2004	1.3	5.92
2005	1.2	5.81
2006	1.24	5.74
2007	1.26	5.64
2008	1.52	5.56
2009	1.36	5.45
2010	1.46	5.33
2011	1.46	5.21
2012	1.29	5.06
2013	1.48	4.87
2014	1.26	4.7
2015	1.2	4.55
2016	1.13	4.47
2017	1.05	4.39
2018	1.08	4.29
2019	1.1	4.19
2020	1.11	4.08
2021	1.13	3.98
2022	1.14	3.88
2023	1.15	3.79
2024	1.16	3.7
2025	1.16	3.61
2026	1.17	3.53
2027	1.18	3.47
2028	1.18	3.37
2029	1.19	3.3
2030	1.2	3.23
2031	1.2	3.18
2032	1.21	3.12
2033	1.21	3.07
2034	1.22	3.02
2035	1.23	2.97
2036	1.23	2.92
2037	1.24	2.88
2038	1.24	2.84
2039	1.25	2.79
2040	1.25	2.76
2041	1.25	2.72
2042	1.26	2.68
2043	1.26	2.65
2044	1.27	2.62
2045	1.27	2.58
2046	1.28	2.55
2047	1.28	2.53
2048	1.29	2.5
2049	1.29	2.47
2050	1.29	2.45

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	San Marino	Sierra Leone
1960	25%	38.2%
1961	25%	38.3%
1962	25%	38.3%
1963	24.8%	38.5%
1964	24.5%	38.8%
1965	24.3%	39.1%
1966	24.5%	39.4%
1967	24.9%	39.6%
1968	25.3%	39.9%
1969	25.6%	40.1%
1970	25.9%	40.3%
1971	26%	40.6%
1972	25.9%	40.7%
1973	25.7%	40.9%
1974	25.4%	41.1%
1975	25.1%	41.3%
1976	24.7%	41.4%
1977	23.9%	41.6%
1978	23%	41.7%
1979	22.4%	41.8%
1980	21.7%	41.9%
1981	21%	42%
1982	20.3%	42.1%
1983	19.7%	42.2%
1984	19.1%	42.3%
1985	18.6%	42.5%
1986	18%	42.6%
1987	17.5%	42.7%
1988	17%	42.8%
1989	16.5%	42.9%
1990	16.1%	42.9%
1991	15.8%	43%
1992	15.4%	43.1%
1993	15.2%	43.2%
1994	15%	43.3%
1995	14.9%	43.4%
1996	14.9%	43.5%
1997	14.9%	43.5%
1998	14.9%	43.6%
1999	14.9%	43.7%
2000	14.9%	43.8%
2001	15%	43.9%
2002	15.1%	43.9%
2003	15.2%	43.9%
2004	15.2%	43.9%
2005	15.3%	43.8%
2006	15.3%	43.7%
2007	15.3%	43.6%
2008	15.4%	43.5%
2009	15.4%	43.4%
2010	15.4%	43.2%
2011	15.3%	43%
2012	15.2%	42.8%
2013	15.1%	42.5%
2014	15.1%	42.2%
2015	14.9%	41.8%
2016	14.7%	41.4%
2017	14.4%	41%
2018	14%	40.6%
2019	13.7%	40.2%
2020	13.4%	39.8%
2021	13.2%	39.4%
2022	13%	39%
2023	12.7%	38.5%
2024	12.3%	38.1%
2025	11.9%	37.7%
2026	11.4%	37.2%
2027	11.1%	36.8%
2028	10.8%	36.3%
2029	10.5%	35.9%
2030	10.3%	35.5%
2031	10.1%	35.2%
2032	10%	34.8%
2033	9.97%	34.4%
2034	9.92%	34%
2035	9.9%	33.6%
2036	9.92%	33.2%
2037	9.98%	32.8%
2038	10.1%	32.4%
2039	10.2%	32%
2040	10.4%	31.6%
2041	10.6%	31.2%
2042	10.7%	30.9%
2043	10.9%	30.5%
2044	11%	30.2%
2045	11.2%	29.8%
2046	11.3%	29.5%
2047	11.4%	29.2%
2048	11.5%	28.8%
2049	11.6%	28.5%
2050	11.7%	28.2%

Children aged 0-14 make up 12.3% of the population in San Marino and 38.1% in Sierra Leone in 2024, compared to 16.1% and 42.9% respectively in 1990.

Demographics of San Marino and Sierra Leone compared.

Natural population change in San Marino vs Sierra Leone by year

For the past 10 years, the annual natural population change (excluding migration) has been -0.1% in San Marino and +2.31% in Sierra Leone. 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
	San Marino	Sierra Leone
1960	139	38,192
1961	174	40,022
1962	155	41,603
1963	158	43,569
1964	163	45,487
1965	169	47,223
1966	173	49,486
1967	171	51,734
1968	171	53,126
1969	173	54,768
1970	173	56,513
1971	174	58,484
1972	173	60,279
1973	167	62,443
1974	153	65,357
1975	141	67,560
1976	126	69,506
1977	117	71,663
1978	121	74,130
1979	104	75,992
1980	90	77,932
1981	76	80,111
1982	61	82,457
1983	54	84,628
1984	46	87,072
1985	44	88,869
1986	40	90,902
1987	31	94,235
1988	34	96,344
1989	36	98,298
1990	41	100,778
1991	45	105,477
1992	42	103,251
1993	38	103,317
1994	43	101,486
1995	51	100,885
1996	63	104,140
1997	71	105,433
1998	74	103,906
1999	80	102,295
2000	107	110,754
2001	132	116,647
2002	112	126,429
2003	79	130,312
2004	121	132,661
2005	66	137,234
2006	75	144,127
2007	69	145,740
2008	159	149,855
2009	145	152,669
2010	126	155,338
2011	105	158,858
2012	54	160,915
2013	73	161,265
2014	46	160,137
2015	36	162,275
2016	10	168,784
2017	-51	173,259
2018	-11	178,772
2019	-17	181,068
2020	-122	181,015
2021	-99	183,326
2022	-58	186,625
2023	-92	188,788

Maternal mortality chart: San Marino vs Sierra Leone

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 8 deaths per 100,000 live births in San Marino, compared to 354 deaths in Sierra Leone.

Table

Year	Maternal mortality per 100K births
	San Marino	Sierra Leone
1985	12	1,506
1986	12	1,530
1987	12	1,533
1988	12	1,549
1989	12	1,575
1990	11	1,572
1991	11	1,699
1992	11	1,681
1993	11	1,696
1994	10	1,755
1995	10	1,777
1996	10	1,726
1997	10	1,721
1998	9	1,753
1999	9	1,731
2000	14	1,603
2001	14	1,518
2002	14	1,492
2003	13	1,433
2004	13	1,366
2005	12	1,294
2006	12	1,168
2007	8	1,132
2008	8	1,093
2009	8	1,054
2010	8	1,018
2011	8	967
2012	8	915
2013	8	842
2014	8	821
2015	8	730
2016	7	633
2017	7	578
2018	7	491
2019	7	464
2020	46	422
2021	35	403
2022	22	370
2023	8	354

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.14% in San Marino and 9.43% in Sierra Leone. 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
	San Marino	Sierra Leone
1960	-	39.1%
1961	-	38.5%
1962	-	38%
1963	-	37.4%
1964	-	36.8%
1965	-	36.2%
1966	-	35.6%
1967	-	35%
1968	-	34.5%
1969	-	33.9%
1970	-	33.4%
1971	-	32.9%
1972	-	32.3%
1973	-	31.9%
1974	-	31.4%
1975	-	30.9%
1976	-	30.5%
1977	-	30%
1978	-	29.6%
1979	-	29.2%
1980	-	28.9%
1981	-	28.5%
1982	-	28.1%
1983	-	27.8%
1984	-	27.5%
1985	1.99%	27.2%
1986	1.82%	26.9%
1987	1.66%	26.6%
1988	1.52%	26.4%
1989	1.39%	26.2%
1990	1.27%	25.9%
1991	1.16%	25.7%
1992	1.06%	25.5%
1993	0.97%	25.3%
1994	0.89%	25%
1995	0.81%	24.7%
1996	0.75%	24.3%
1997	0.69%	23.9%
1998	0.63%	23.4%
1999	0.58%	22.9%
2000	0.54%	22.4%
2001	0.5%	21.8%
2002	0.46%	21.3%
2003	0.42%	20.7%
2004	0.39%	20.1%
2005	0.37%	19.4%
2006	0.34%	18.8%
2007	0.32%	18.1%
2008	0.3%	17.3%
2009	0.28%	16.6%
2010	0.27%	15.9%
2011	0.25%	15.2%
2012	0.24%	14.5%
2013	0.23%	13.9%
2014	0.21%	13.7%
2015	0.2%	13.8%
2016	0.19%	12.3%
2017	0.18%	11.8%
2018	0.17%	11.3%
2019	0.17%	10.9%
2020	0.16%	10.5%
2021	0.15%	10.1%
2022	0.15%	9.77%
2023	0.14%	9.43%