世界の人口と男女比の偏りについて

「インドでは妊娠時に子供が女の子だと堕胎させられるため男女比に非常に偏りがある」という話を聞き、実際に確認してみた。

国別の人口と男女比の表（男が51％以上を抜粋）

 この表から以下のことが読み取れる。

• 総人口が2位のインドは確かに男性比率が約52％と偏りがある。一般的には母数が増加すればするほど偏りがなくなるが、偏りがあるということは何か非自然の力が働いている。
• インドとは比較的近い文化をもつパキスタンも同じ傾向がある。
• ただしバングラデシュはこの条件には当てはまらない。
• アラブ諸国など石油大国は出稼ぎ労働者が多いため男性比率が極端に高い。出稼ぎ労働者はやはり男性が多い傾向がある。特にインド人男性の出稼ぎ労働者が目立つ。
• 中国も比較的男性が多い。一人っ子政策の影響があるかもしれない。
• 日本は世界で10番目の人口である。
• 逆に日本は女性が51％以上と偏りがある。日本に関しては戦争の影響もあるだろうが、女性が多い国家についてはこのページでは省く。

以下WORLD HEALTH STATISTICS 2020 (WHO)に掲載されている2018年度の人口推計の表である。単位は千人。

人口順

Nation's name	Male	Female	Total	No.
Global	3,829,425	3,765,271	7,594,696	-
China	736,377	699,274	1,435,651	1
India	703,056	649,587	1,352,642	2
United States of America	161,847	165,249	327,096	3
Indonesia	134,788	132,882	267,671	4
Pakistan	109,217	103,012	212,228	5
Brazil	102,996	106,473	209,469	6
Nigeria	99,238	96,637	195,875	7
Bangladesh	81,677	79,700	161,377	8
Russian Federation	67,531	78,203	145,734	9
Japan	62,126	65,076	127,202	10
Mexico	61,721	64,470	126,191	11
Ethiopia	54,635	54,589	109,224	12
Philippines	53,601	53,050	106,651	13
Egypt	49,733	48,690	98,424	14
Viet Nam	47,681	47,865	95,546	15
Democratic Republic of the Congo	41,952	42,116	84,068	16
Germany	41,013	42,111	83,124	17
Turkey	40,612	41,728	82,340	18
Iran (Islamic Republic of)	41,359	40,441	81,800	19
Thailand	33,833	35,595	69,428	20
United Kingdom	33,144	33,997	67,142	21
France	31,466	33,525	64,991	22
Italy	29,479	31,148	60,627	23
South Africa	28,495	29,297	57,793	24
United Republic of Tanzania	28,128	28,185	56,313	25
Myanmar	25,883	27,825	53,708	26
Kenya	25,534	25,859	51,393	27
Republic of Korea	25,628	25,543	51,172	28
Colombia	24,371	25,290	49,661	29
Spain	22,928	23,765	46,693	30
Argentina	21,632	22,729	44,361	31
Ukraine	20,491	23,755	44,246	32
Uganda	21,033	21,696	42,729	33
Algeria	21,332	20,896	42,228	34
Sudan	20,881	20,921	41,802	35
Iraq	19,444	18,990	38,434	36
Poland	18,380	19,541	37,922	37
Afghanistan	19,093	18,079	37,172	38
Canada	18,392	18,682	37,075	39
Morocco	17,869	18,160	36,029	40
Saudi Arabia	19,397	14,305	33,703	41
Uzbekistan	16,194	16,283	32,476	42
Peru	15,887	16,103	31,989	43
Malaysia	16,212	15,316	31,528	44
Angola	15,241	15,568	30,810	45
Ghana	15,084	14,683	29,767	46
Mozambique	14,313	15,183	29,496	47
Venezuela (Bolivarian Republic of)	14,261	14,626	28,887	48
Yemen	14,360	14,139	28,499	49
Nepal	12,774	15,322	28,096	50
Madagascar	13,099	13,164	26,262	51
Democratic People’s Republic of Korea	12,495	13,054	25,550	52
Cameroon	12,607	12,609	25,216	53
Côte d’Ivoire	12,655	12,414	25,069	54
Australia	12,399	12,499	24,898	55
Niger	11,273	11,170	22,443	56
Sri Lanka	10,197	11,032	21,229	57
Burkina Faso	9,857	9,895	19,751	58
Romania	9,491	10,015	19,506	59
Mali	9,550	9,528	19,078	60
Chile	9,228	9,501	18,729	61
Kazakhstan	8,883	9,437	18,320	62
Malawi	8,944	9,199	18,143	63
Zambia	8,590	8,761	17,352	64
Guatemala	8,493	8,755	17,248	65
Ecuador	8,547	8,537	17,084	66
Netherlands	8,492	8,567	17,060	67
Syrian Arab Republic	8,504	8,441	16,945	68
Cambodia	7,930	8,320	16,250	69
Senegal	7,725	8,130	15,854	70
Chad	7,726	7,752	15,478	71
Somalia	7,484	7,524	15,008	72
Zimbabwe	6,879	7,560	14,439	73
Guinea	5,981	6,433	12,414	74
Rwanda	6,045	6,257	12,302	75
Tunisia	5,732	5,833	11,565	76
Benin	5,731	5,754	11,485	77
Belgium	5,673	5,809	11,482	78
Bolivia (Plurinational State of)	5,701	5,652	11,353	79
Cuba	5,631	5,707	11,338	80
Burundi	5,541	5,635	11,175	81
Haiti	5,489	5,634	11,123	82
South Sudan	5,493	5,483	10,976	83
Czechia	5,247	5,419	10,666	84
Dominican Republic	5,313	5,314	10,627	85
Greece	5,165	5,358	10,522	86
Portugal	4,850	5,406	10,256	87
Sweden	4,991	4,980	9,972	88
Jordan	5,043	4,922	9,965	89
Azerbaijan	4,963	4,986	9,950	90
Hungary	4,618	5,090	9,708	91
United Arab Emirates	6,680	2,951	9,631	92
Honduras	4,789	4,798	9,588	93
Belarus	4,400	5,053	9,453	94
Tajikistan	4,588	4,513	9,101	95
Austria	4,372	4,519	8,891	96
Serbia	4,313	4,490	8,803	97
Papua New Guinea	4,392	4,214	8,606	98
Switzerland	4,226	4,299	8,526	99
Israel	4,166	4,216	8,382	100
Togo	3,923	3,966	7,889	101
Sierra Leone	3,816	3,834	7,650	102
Lao People’s Democratic Republic	3,546	3,516	7,061	103
Bulgaria	3,426	3,626	7,052	104
Paraguay	3,537	3,419	6,956	105
Lebanon	3,450	3,410	6,859	106
Libya	3,374	3,305	6,679	107
Nicaragua	3,187	3,279	6,466	108
El Salvador	3,010	3,410	6,421	109
Kyrgyzstan	3,119	3,185	6,304	110
Turkmenistan	2,881	2,970	5,851	111
Singapore	3,014	2,744	5,758	112
Denmark	2,860	2,892	5,752	113
Finland	2,721	2,801	5,523	114
Slovakia	2,654	2,799	5,453	115
Norway	2,694	2,644	5,338	116
Congo	2,619	2,626	5,244	117
Costa Rica	2,499	2,500	4,999	118
Oman	3,187	1,643	4,829	119
Ireland	2,389	2,430	4,819	120
Liberia	2,421	2,398	4,819	121
New Zealand	2,332	2,411	4,743	122
Central African Republic	2,313	2,354	4,666	123
Mauritania	2,209	2,194	4,403	124
Panama	2,092	2,084	4,177	125
Croatia	2,001	2,155	4,156	126
Kuwait	2,501	1,636	4,137	127
Republic of Moldova	1,943	2,108	4,052	128
Georgia	1,910	2,093	4,003	129
Eritrea	1,730	1,722	3,453	130
Uruguay	1,665	1,784	3,449	131
Bosnia and Herzegovina	1,628	1,696	3,324	132
Mongolia	1,564	1,606	3,170	133
Armenia	1,389	1,563	2,952	134
Jamaica	1,457	1,477	2,935	135
Albania	1,468	1,414	2,883	136
Lithuania	1,294	1,507	2,801	137
Qatar	2,100	681	2,782	138
Namibia	1,186	1,262	2,448	139
Gambia	1,131	1,149	2,280	140
Botswana	1,088	1,166	2,254	141
Gabon	1,079	1,040	2,119	142
Lesotho	1,039	1,069	2,108	143
North Macedonia	1,042	1,041	2,083	144
Slovenia	1,034	1,044	2,078	145
Latvia	887	1,042	1,928	146
Guinea-Bissau	915	959	1,874	147
Bahrain	999	570	1,569	148
Trinidad and Tobago	687	703	1,390	149
Estonia	624	699	1,323	150
Equatorial Guinea	727	582	1,309	151
Timor-Leste	641	627	1,268	152
Mauritius	626	641	1,267	153
Cyprus	595	594	1,189	154
Eswatini	555	581	1,136	155
Djibouti	505	454	959	156
Fiji	448	436	883	157
Comoros	420	412	832	158
Guyana	391	388	779	159
Bhutan	400	355	754	160
Solomon Islands	332	321	653	161
Montenegro	310	317	628	162
Luxembourg	305	299	604	163
Suriname	290	286	576	164
Cabo Verde	273	271	544	165
Maldives	324	192	516	166
Malta	220	219	439	167
Brunei Darussalam	223	206	429	168
Bahamas	187	198	386	169
Belize	191	192	383	170
Iceland	169	168	337	171
Vanuatu	148	144	293	172
Barbados	139	148	287	173
Sao Tome and Principe	106	105	211	174
Samoa	101	95	196	175
Saint Lucia	90	92	182	176
Kiribati	57	59	116	177
Micronesia (Federated States of)	57	55	113	178
Grenada	56	55	111	179
Saint Vincent and the Grenadines	56	54	110	180
Tonga	52	52	103	181
Seychelles	50	47	97	182
Antigua and Barbuda	46	50	96	183
Andorra	-	-	77	184
Dominica	-	-	72	185
Marshall Islands	-	-	58	186
Saint Kitts and Nevis	-	-	52	187
Monaco	-	-	39	188
San Marino	-	-	34	189
Cook Islands	-	-	18	190
Palau	-	-	18	191
Tuvalu	-	-	12	192
Nauru	-	-	11	193
Niue	-	-	2	194

国名順（アルファベット順）

Nation's name	Male	Female	Total	No.
Afghanistan	19,093	18,079	37,172	38
Albania	1,468	1,414	2,883	136
Algeria	21,332	20,896	42,228	34
Andorra	-	-	77	184
Angola	15,241	15,568	30,810	45
Antigua and Barbuda	46	50	96	183
Argentina	21,632	22,729	44,361	31
Armenia	1,389	1,563	2,952	134
Australia	12,399	12,499	24,898	55
Austria	4,372	4,519	8,891	96
Azerbaijan	4,963	4,986	9,950	90
Bahamas	187	198	386	169
Bahrain	999	570	1,569	148
Bangladesh	81,677	79,700	161,377	8
Barbados	139	148	287	173
Belarus	4,400	5,053	9,453	94
Belgium	5,673	5,809	11,482	78
Belize	191	192	383	170
Benin	5,731	5,754	11,485	77
Bhutan	400	355	754	160
Bolivia (Plurinational State of)	5,701	5,652	11,353	79
Bosnia and Herzegovina	1,628	1,696	3,324	132
Botswana	1,088	1,166	2,254	141
Brazil	102,996	106,473	209,469	6
Brunei Darussalam	223	206	429	168
Bulgaria	3,426	3,626	7,052	104
Burkina Faso	9,857	9,895	19,751	58
Burundi	5,541	5,635	11,175	81
Cabo Verde	273	271	544	165
Cambodia	7,930	8,320	16,250	69
Cameroon	12,607	12,609	25,216	53
Canada	18,392	18,682	37,075	39
Central African Republic	2,313	2,354	4,666	123
Chad	7,726	7,752	15,478	71
Chile	9,228	9,501	18,729	61
China	736,377	699,274	1,435,651	1
Colombia	24,371	25,290	49,661	29
Comoros	420	412	832	158
Congo	2,619	2,626	5,244	117
Cook Islands	-	-	18	190
Costa Rica	2,499	2,500	4,999	118
Côte d’Ivoire	12,655	12,414	25,069	54
Croatia	2,001	2,155	4,156	126
Cuba	5,631	5,707	11,338	80
Cyprus	595	594	1,189	154
Czechia	5,247	5,419	10,666	84
Democratic People’s Republic of Korea	12,495	13,054	25,550	52
Democratic Republic of the Congo	41,952	42,116	84,068	16
Denmark	2,860	2,892	5,752	113
Djibouti	505	454	959	156
Dominica	-	-	72	185
Dominican Republic	5,313	5,314	10,627	85
Ecuador	8,547	8,537	17,084	66
Egypt	49,733	48,690	98,424	14
El Salvador	3,010	3,410	6,421	109
Equatorial Guinea	727	582	1,309	151
Eritrea	1,730	1,722	3,453	130
Estonia	624	699	1,323	150
Eswatini	555	581	1,136	155
Ethiopia	54,635	54,589	109,224	12
Fiji	448	436	883	157
Finland	2,721	2,801	5,523	114
France	31,466	33,525	64,991	22
Gabon	1,079	1,040	2,119	142
Gambia	1,131	1,149	2,280	140
Georgia	1,910	2,093	4,003	129
Germany	41,013	42,111	83,124	17
Ghana	15,084	14,683	29,767	46
Greece	5,165	5,358	10,522	86
Grenada	56	55	111	179
Guatemala	8,493	8,755	17,248	65
Guinea	5,981	6,433	12,414	74
Guinea-Bissau	915	959	1,874	147
Guyana	391	388	779	159
Haiti	5,489	5,634	11,123	82
Honduras	4,789	4,798	9,588	93
Hungary	4,618	5,090	9,708	91
Iceland	169	168	337	171
India	703,056	649,587	1,352,642	2
Indonesia	134,788	132,882	267,671	4
Iran (Islamic Republic of)	41,359	40,441	81,800	19
Iraq	19,444	18,990	38,434	36
Ireland	2,389	2,430	4,819	120
Israel	4,166	4,216	8,382	100
Italy	29,479	31,148	60,627	23
Jamaica	1,457	1,477	2,935	135
Japan	62,126	65,076	127,202	10
Jordan	5,043	4,922	9,965	89
Kazakhstan	8,883	9,437	18,320	62
Kenya	25,534	25,859	51,393	27
Kiribati	57	59	116	177
Kuwait	2,501	1,636	4,137	127
Kyrgyzstan	3,119	3,185	6,304	110
Lao People’s Democratic Republic	3,546	3,516	7,061	103
Latvia	887	1,042	1,928	146
Lebanon	3,450	3,410	6,859	106
Lesotho	1,039	1,069	2,108	143
Liberia	2,421	2,398	4,819	121
Libya	3,374	3,305	6,679	107
Lithuania	1,294	1,507	2,801	137
Luxembourg	305	299	604	163
Madagascar	13,099	13,164	26,262	51
Malawi	8,944	9,199	18,143	63
Malaysia	16,212	15,316	31,528	44
Maldives	324	192	516	166
Mali	9,550	9,528	19,078	60
Malta	220	219	439	167
Marshall Islands	-	-	58	186
Mauritania	2,209	2,194	4,403	124
Mauritius	626	641	1,267	153
Mexico	61,721	64,470	126,191	11
Micronesia (Federated States of)	57	55	113	178
Monaco	-	-	39	188
Mongolia	1,564	1,606	3,170	133
Montenegro	310	317	628	162
Morocco	17,869	18,160	36,029	40
Mozambique	14,313	15,183	29,496	47
Myanmar	25,883	27,825	53,708	26
Namibia	1,186	1,262	2,448	139
Nauru	-	-	11	193
Nepal	12,774	15,322	28,096	50
Netherlands	8,492	8,567	17,060	67
New Zealand	2,332	2,411	4,743	122
Nicaragua	3,187	3,279	6,466	108
Niger	11,273	11,170	22,443	56
Nigeria	99,238	96,637	195,875	7
Niue	-	-	2	194
North Macedonia	1,042	1,041	2,083	144
Norway	2,694	2,644	5,338	116
Oman	3,187	1,643	4,829	119
Pakistan	109,217	103,012	212,228	5
Palau	-	-	18	191
Panama	2,092	2,084	4,177	125
Papua New Guinea	4,392	4,214	8,606	98
Paraguay	3,537	3,419	6,956	105
Peru	15,887	16,103	31,989	43
Philippines	53,601	53,050	106,651	13
Poland	18,380	19,541	37,922	37
Portugal	4,850	5,406	10,256	87
Qatar	2,100	681	2,782	138
Republic of Korea	25,628	25,543	51,172	28
Republic of Moldova	1,943	2,108	4,052	128
Romania	9,491	10,015	19,506	59
Russian Federation	67,531	78,203	145,734	9
Rwanda	6,045	6,257	12,302	75
Saint Kitts and Nevis	-	-	52	187
Saint Lucia	90	92	182	176
Saint Vincent and the Grenadines	56	54	110	180
Samoa	101	95	196	175
San Marino	-	-	34	189
Sao Tome and Principe	106	105	211	174
Saudi Arabia	19,397	14,305	33,703	41
Senegal	7,725	8,130	15,854	70
Serbia	4,313	4,490	8,803	97
Seychelles	50	47	97	182
Sierra Leone	3,816	3,834	7,650	102
Singapore	3,014	2,744	5,758	112
Slovakia	2,654	2,799	5,453	115
Slovenia	1,034	1,044	2,078	145
Solomon Islands	332	321	653	161
Somalia	7,484	7,524	15,008	72
South Africa	28,495	29,297	57,793	24
South Sudan	5,493	5,483	10,976	83
Spain	22,928	23,765	46,693	30
Sri Lanka	10,197	11,032	21,229	57
Sudan	20,881	20,921	41,802	35
Suriname	290	286	576	164
Sweden	4,991	4,980	9,972	88
Switzerland	4,226	4,299	8,526	99
Syrian Arab Republic	8,504	8,441	16,945	68
Tajikistan	4,588	4,513	9,101	95
Thailand	33,833	35,595	69,428	20
Timor-Leste	641	627	1,268	152
Togo	3,923	3,966	7,889	101
Tonga	52	52	103	181
Trinidad and Tobago	687	703	1,390	149
Tunisia	5,732	5,833	11,565	76
Turkey	40,612	41,728	82,340	18
Turkmenistan	2,881	2,970	5,851	111
Tuvalu	-	-	12	192
Uganda	21,033	21,696	42,729	33
Ukraine	20,491	23,755	44,246	32
United Arab Emirates	6,680	2,951	9,631	92
United Kingdom	33,144	33,997	67,142	21
United Republic of Tanzania	28,128	28,185	56,313	25
United States of America	161,847	165,249	327,096	3
Uruguay	1,665	1,784	3,449	131
Uzbekistan	16,194	16,283	32,476	42
Vanuatu	148	144	293	172
Venezuela (Bolivarian Republic of)	14,261	14,626	28,887	48
Viet Nam	47,681	47,865	95,546	15
Yemen	14,360	14,139	28,499	49
Zambia	8,590	8,761	17,352	64
Zimbabwe	6,879	7,560	14,439	73
Global	3,829,425	3,765,271	7,594,696	-

地域別

African Region	530,907	532,833	1,063,740
Region of the Americas	493,940	507,706	1,001,647
South-East Asia Region	1,016,068	966,171	1,982,238
European Region	449,315	477,596	926,911
Eastern Mediterranean Region	360,913	338,106	699,019
Western Pacific Region	978,281	942,859	1,921,140
Global	3,829,425	3,765,271	7,594,696