Fertility & birth rates in Slovenia and Tonga

Fertility rate in Slovenia vs Tonga by year

Chart Table

Slovenia

Tonga

1x

Year	Fertility rate
	Slovenia	Tonga
2023	1.51	3.13
2022	1.55	3.17
2021	1.64	3.2
2020	1.59	3.23
2019	1.61	3.27
2018	1.6	3.33
2017	1.62	3.39
2016	1.58	3.46
2015	1.57	3.54
2014	1.58	3.62
2013	1.55	3.7
2012	1.58	3.77
2011	1.56	3.83
2010	1.57	3.88
2009	1.53	3.95
2008	1.53	4.01
2007	1.38	4.09
2006	1.31	4.14
2005	1.26	4.2
2004	1.25	4.19
2003	1.2	4.18
2002	1.21	4.14
2001	1.21	4.13
2000	1.26	4.16
1999	1.21	4.23
1998	1.23	4.31
1997	1.25	4.38
1996	1.28	4.46
1995	1.29	4.56
1994	1.32	4.66
1993	1.33	4.73
1992	1.33	4.79
1991	1.42	4.85
1990	1.46	4.93
1989	1.52	5.01
1988	1.63	5.1
1987	1.65	5.19
1986	1.67	5.27
1985	1.71	5.34
1984	1.74	5.41
1983	1.81	5.45
1982	1.93	5.5
1981	1.96	5.55
1980	2.11	5.6
1979	2.22	5.65
1978	2.2	5.68
1977	2.17	5.7
1976	2.2	5.73
1975	2.17	5.75
1974	2.13	5.77
1973	2.2	5.8
1972	2.17	5.86
1971	2.16	5.96
1970	2.11	6.07
1969	2.17	6.17
1968	2.25	6.23
1967	2.37	6.29
1966	2.47	6.35
1965	2.43	6.41
1964	2.31	6.46
1963	2.27	6.52
1962	2.28	6.57
1961	2.27	6.61
1960	2.19	6.65

According to the latest available data on birth rates, the fertility rate in Slovenia was 1.51 children per woman in 2023, compared to 3.13 in Tonga in 2023. The replacement level is considered to be 2.1 children per woman.

Check Slovenia vs Tonga population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Slovenia

Tonga

1x

Year	Natural population change
	Slovenia	Tonga
2023	-4,665	1,744
2022	-4,858	1,772
2021	-4,216	1,773
2020	-5,256	1,816
2019	-1,254	1,841
2018	-1,037	1,873
2017	-207	1,912
2016	826	1,989
2015	826	2,064
2014	2,268	2,135
2013	1,648	2,199
2012	2,674	2,255
2011	3,285	2,298
2010	3,687	2,332
2009	3,060	2,358
2008	3,437	2,397
2007	1,211	2,423
2006	602	2,459
2005	-600	2,495
2004	-599	2,478
2003	-1,996	2,448
2002	-1,197	2,396
2001	-996	2,358
2000	-398	2,346
1999	-1,388	2,352
1998	-1,189	2,344
1997	-794	2,332
1996	0	2,393
1995	0	2,476
1994	199	2,547
1993	-199	2,594
1992	598	2,622
1991	2,199	2,637
1990	3,797	2,641
1989	4,592	2,644
1988	5,986	2,649
1987	5,771	2,646
1986	6,094	2,704
1985	6,213	2,762
1984	5,990	2,814
1983	6,343	2,840
1982	9,170	2,853
1981	10,485	2,882
1980	11,027	2,885
1979	12,614	2,884
1978	11,920	2,862
1977	12,160	2,822
1976	12,196	2,769
1975	11,658	2,709
1974	11,367	2,650
1973	11,837	2,617
1972	10,513	2,605
1971	10,951	2,611
1970	10,004	2,628
1969	9,427	2,632
1968	11,250	2,614
1967	13,516	2,603
1966	15,697	2,550
1965	14,513	2,498
1964	12,567	2,445
1963	14,068	2,394
1962	13,150	2,343
1961	14,985	2,284
1960	12,678	2,230

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 -0.22% in Slovenia and +1.67% in Tonga.

For the past 10 years, the annual natural population change has been -0.08% in Slovenia and +1.79% in Tonga.

Birth rate in Slovenia vs Tonga by year

Chart Table

Slovenia

Tonga

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Slovenia	Tonga
2023	8	23.1
2022	8.3	23.4
2021	9	23.5
2020	8.9	23.6
2019	9.3	23.8
2018	9.4	24.1
2017	9.8	24.5
2016	9.9	25.2
2015	10	25.8
2014	10.3	26.4
2013	10.2	26.9
2012	10.7	27.3
2011	10.7	27.7
2010	10.9	28
2009	10.7	28.4
2008	10.8	28.7
2007	9.8	29
2006	9.4	29.5
2005	9.1	30
2004	9	30
2003	8.7	29.9
2002	8.8	29.5
2001	8.8	29.4
2000	9.1	29.4
1999	8.8	29.6
1998	9	29.7
1997	9.1	29.8
1996	9.4	30.6
1995	9.5	31.4
1994	9.8	32.2
1993	9.9	32.7
1992	10	33
1991	10.8	33.2
1990	11.2	33.3
1989	11.7	33.4
1988	12.6	33.5
1987	12.9	33.7
1986	13	34.4
1985	13.4	34.9
1984	13.6	35.4
1983	14.1	35.6
1982	15.1	35.8
1981	15.3	36
1980	15.7	36.1
1979	16.3	36.1
1978	16.3	36
1977	16.2	35.7
1976	16.7	35.6
1975	16.6	35.8
1974	16.1	36
1973	16.7	36.5
1972	16.4	37
1971	16.3	37.8
1970	15.9	38.8
1969	16.3	39.6
1968	16.8	40.3
1967	17.7	41
1966	18.5	41.4
1965	18.5	41.9
1964	17.9	42.4
1963	18	42.9
1962	18.1	43.4
1961	18.2	43.9
1960	17.6	44.3

The latest reported birth rate per 1,000 people in 2023 was 8 in Slovenia and 23.1 in Tonga, compared with 17.6 and 44.3, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Slovenia

Factual

UN forecast

Tonga

Factual

UN forecast

1x

Year	Young
	Slovenia	Tonga
2100	12.6%	17.5%
2099	12.6%	17.6%
2098	12.7%	17.7%
2097	12.7%	17.7%
2096	12.8%	17.9%
2095	12.8%	18%
2094	12.9%	18.1%
2093	13%	18.3%
2092	13.1%	18.4%
2091	13.1%	18.6%
2090	13.2%	18.8%
2089	13.3%	19%
2088	13.3%	19.3%
2087	13.4%	19.5%
2086	13.4%	19.7%
2085	13.4%	20%
2084	13.4%	20.2%
2083	13.4%	20.4%
2082	13.4%	20.7%
2081	13.4%	20.9%
2080	13.3%	21.1%
2079	13.3%	21.3%
2078	13.2%	21.5%
2077	13.1%	21.7%
2076	13.1%	21.9%
2075	13%	22%
2074	12.9%	22.2%
2073	12.9%	22.3%
2072	12.8%	22.4%
2071	12.8%	22.6%
2070	12.7%	22.7%
2069	12.7%	22.8%
2068	12.7%	23%
2067	12.7%	23.2%
2066	12.8%	23.4%
2065	12.8%	23.6%
2064	12.9%	23.8%
2063	13%	24.1%
2062	13.1%	24.4%
2061	13.2%	24.7%
2060	13.3%	25%
2059	13.3%	25.4%
2058	13.4%	25.8%
2057	13.5%	26.2%
2056	13.6%	26.6%
2055	13.6%	27%
2054	13.6%	27.4%
2053	13.6%	27.8%
2052	13.6%	28.2%
2051	13.6%	28.5%
2050	13.5%	28.9%
2049	13.4%	29.1%
2048	13.3%	29.4%
2047	13.2%	29.6%
2046	13.1%	29.7%
2045	13%	29.8%
2044	12.8%	29.9%
2043	12.7%	30%
2042	12.6%	30.1%
2041	12.5%	30.1%
2040	12.5%	30.2%
2039	12.4%	30.2%
2038	12.4%	30.3%
2037	12.4%	30.4%
2036	12.5%	30.6%
2035	12.6%	30.7%
2034	12.7%	30.9%
2033	12.9%	31.1%
2032	13%	31.4%
2031	13.2%	31.8%
2030	13.4%	32.3%
2029	13.7%	33%
2028	13.9%	33.6%
2027	14.1%	34.1%
2026	14.4%	34.6%
2025	14.6%	35.2%
2024	14.7%	35.4%
2023	14.9%	35.6%
2022	15.1%	35.6%
2021	15.2%	35.7%
2020	15.1%	35.8%
2019	15.1%	36%
2018	15.1%	36.2%
2017	15%	36.4%
2016	14.9%	36.5%
2015	14.8%	36.7%
2014	14.7%	36.9%
2013	14.6%	37.1%
2012	14.4%	37.2%
2011	14.3%	37.4%
2010	14.1%	37.6%
2009	14%	37.8%
2008	14%	38%
2007	14%	38.3%
2006	14.1%	38.3%
2005	14.3%	38.3%
2004	14.5%	38.2%
2003	14.8%	38.1%
2002	15.2%	38.1%
2001	15.6%	38.2%
2000	15.9%	38.3%
1999	16.4%	38.6%
1998	16.8%	38.9%
1997	17.3%	39.3%
1996	17.8%	39.7%
1995	18.3%	39.9%
1994	18.8%	40.1%
1993	19.3%	40.3%
1992	19.8%	40.5%
1991	20.3%	40.6%
1990	20.8%	40.8%
1989	21.1%	40.9%
1988	21.4%	41.2%
1987	21.6%	41.5%
1986	22%	41.7%
1985	22.3%	42%
1984	22.5%	42.4%
1983	22.7%	42.9%
1982	22.8%	43.4%
1981	22.9%	43.9%
1980	23%	44.3%
1979	23.1%	44.8%
1978	23.2%	45.3%
1977	23.3%	45.8%
1976	23.4%	46.1%
1975	23.6%	46.2%
1974	23.7%	46.2%
1973	23.8%	46.2%
1972	23.9%	46.3%
1971	24%	46.4%
1970	24.3%	46.4%
1969	24.7%	46.3%
1968	25.1%	46.2%
1967	25.5%	46%
1966	25.8%	45.9%
1965	26.2%	45.9%
1964	26.6%	45.9%
1963	26.9%	45.9%
1962	27.1%	45.8%
1961	27.2%	45.7%
1960	27.2%	45.7%

Children aged 0-14 make up 14.7% of the population in Slovenia and 35.4% in Tonga in 2024, compared to 20.8% and 40.8% respectively in 1990.

Demographics of Slovenia and Tonga compared.

Maternal mortality chart: Slovenia vs Tonga

Chart Table

Slovenia

Tonga

1x

Year	Maternal mortality per 100K births
	Slovenia	Tonga
2023	3	67
2022	15	72
2021	8	76
2020	12	74
2019	4	73
2018	4	74
2017	5	77
2016	5	78
2015	5	79
2014	6	80
2013	6	80
2012	6	83
2011	6	84
2010	7	85
2009	7	91
2008	7	88
2007	6	88
2006	6	89
2005	6	92
2004	6	92
2003	6	95
2002	6	98
2001	6	98
2000	7	100
1999	8	99
1998	9	104
1997	9	111
1996	10	113
1995	11	117
1994	12	123
1993	12	127
1992	13	129
1991	13	134
1990	14	138
1989	15	139
1988	16	145
1987	16	147
1986	16	149
1985	17	148

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 3 deaths per 100,000 live births in Slovenia, compared to 67 deaths in Tonga.

Under-five mortality rates

Chart Table

Slovenia

Tonga

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Slovenia	Tonga
2023	0.22%	0.99%
2022	0.23%	1.02%
2021	0.23%	1.05%
2020	0.24%	1.08%
2019	0.24%	1.1%
2018	0.24%	1.12%
2017	0.25%	1.15%
2016	0.26%	1.17%
2015	0.26%	1.19%
2014	0.27%	1.22%
2013	0.28%	1.24%
2012	0.29%	1.26%
2011	0.31%	1.29%
2010	0.32%	1.31%
2009	0.34%	1.34%
2008	0.36%	1.37%
2007	0.38%	1.41%
2006	0.4%	1.44%
2005	0.42%	1.48%
2004	0.44%	1.52%
2003	0.47%	1.56%
2002	0.49%	1.61%
2001	0.52%	1.65%
2000	0.54%	1.7%
1999	0.58%	1.74%
1998	0.61%	1.78%
1997	0.65%	1.81%
1996	0.69%	1.85%
1995	0.73%	1.89%
1994	0.79%	1.94%
1993	0.84%	2%
1992	0.9%	2.06%
1991	0.97%	2.14%
1990	1.04%	2.21%
1989	1.11%	2.29%
1988	1.19%	2.37%
1987	1.27%	2.44%
1986	1.36%	2.51%
1985	1.44%	2.57%
1984	1.53%	2.63%
1983	1.61%	2.7%
1982	1.69%	2.78%
1981	1.78%	2.87%
1980	-	2.97%
1979	-	3.09%
1978	-	3.22%
1977	-	3.37%
1976	-	3.53%
1975	-	3.71%
1974	-	3.9%
1973	-	4.11%
1972	-	4.35%
1971	-	4.61%
1970	-	4.91%
1969	-	5.25%
1968	-	5.63%
1967	-	6.03%
1966	-	6.45%
1965	-	6.89%
1964	-	7.35%
1963	-	7.83%

The chance that a newborn baby will die before reaching age five is 0.22% in Slovenia and 0.99% in Tonga. Above is a chart with historical data on under-five mortality rates.