表1-1-3　総人口,年齢区分(0〜19歳,20〜64歳,20〜59歳,65歳以上)別人口および年齢構造係数：中位推計
		人　口（1,000人）					人口比（％）
年　次		総　数	0〜19歳	20〜64歳 (1)	20〜59歳 (2)	65歳以上 (3)	(3)/(1)	(3)/(2)
平成 12	(2000)	126,926	26,007	78,878	71,128	22,041	27.9	31.0
13	(2001)	127,183	25,658	78,682	70,780	22,843	29.0	32.3
14	(2002)	127,377	25,318	78,478	70,376	23,581	30.0	33.5
15	(2003)	127,524	24,967	78,338	70,039	24,219	30.9	34.6
16	(2004)	127,635	24,617	78,297	69,648	24,722	31.6	35.5
17	(2005)	127,708	24,301	78,016	69,542	25,392	32.5	36.5
18	(2006)	127,741	24,032	77,537	69,484	26,172	33.8	37.7
19	(2007)	127,733	23,771	77,002	68,609	26,959	35.0	39.3
20	(2008)	127,686	23,532	76,496	67,603	27,658	36.2	40.9
21	(2009)	127,599	23,328	75,901	66,549	28,370	37.4	42.6
22	(2010)	127,473	23,133	75,606	65,686	28,735	38.0	43.7
23	(2011)	127,309	22,952	75,389	64,955	28,968	38.4	44.6
24	(2012)	127,107	22,758	74,406	64,345	29,942	40.2	46.5
25	(2013)	126,865	22,572	73,312	63,816	30,981	42.3	48.5
26	(2014)	126,585	22,353	72,239	63,418	31,992	44.3	50.4
27	(2015)	126,266	22,125	71,369	63,023	32,772	45.9	52.0
28	(2016)	125,909	21,902	70,635	62,667	33,372	47.2	53.3
29	(2017)	125,513	21,661	70,020	62,394	33,832	48.3	54.2
30	(2018)	125,080	21,403	69,507	62,090	34,170	49.2	55.0
31	(2019)	124,611	21,161	69,071	61,722	34,379	49.8	55.7
32	(2020)	124,107	20,903	68,644	61,388	34,559	50.3	56.3
33	(2021)	123,570	20,618	68,289	61,085	34,663	50.8	56.7
34	(2022)	123,002	20,333	67,998	60,755	34,671	51.0	57.1
35	(2023)	122,406	20,050	67,663	60,365	34,694	51.3	57.5
36	(2024)	121,784	19,771	67,279	59,929	34,734	51.6	58.0
37	(2025)	121,136	19,501	66,909	59,373	34,726	51.9	58.5
38	(2026)	120,466	19,240	66,538	59,119	34,688	52.1	58.7
39	(2027)	119,773	18,989	66,132	58,477	34,652	52.4	59.3
40	(2028)	119,061	18,747	65,664	57,819	34,650	52.8	59.9
41	(2029)	118,329	18,515	65,149	57,111	34,665	53.2	60.7
42	(2030)	117,580	18,290	64,519	56,357	34,770	53.9	61.7
43	(2031)	116,813	18,073	64,186	55,543	34,554	53.8	62.2
44	(2032)	116,032	17,864	63,479	54,671	34,689	54.6	63.4
45	(2033)	115,235	17,662	62,758	53,751	34,815	55.5	64.8
46	(2034)	114,425	17,466	61,991	52,851	34,968	56.4	66.2
47	(2035)	113,602	17,277	61,180	52,029	35,145	57.4	67.5
48	(2036)	112,768	17,095	60,311	51,266	35,362	58.6	69.0
49	(2037)	111,923	16,918	59,385	50,566	35,619	60.0	70.4
50	(2038)	111,068	16,749	58,412	49,881	35,908	61.5	72.0
51	(2039)	110,207	16,585	57,459	49,233	36,163	62.9	73.5
52	(2040)	109,338	16,425	56,581	48,593	36,332	64.2	74.8
53	(2041)	108,465	16,270	55,764	48,004	36,432	65.3	75.9
54	(2042)	107,589	16,117	55,011	47,422	36,462	66.3	76.9
55	(2043)	106,712	15,965	54,277	46,829	36,471	67.2	77.9
56	(2044)	105,835	15,814	53,583	46,242	36,439	68.0	78.8
57	(2045)	104,960	15,662	52,902	45,692	36,396	68.8	79.7
58	(2046)	104,087	15,510	52,275	45,194	36,302	69.4	80.3
59	(2047)	103,213	15,356	51,659	44,712	36,198	70.1	81.0
60	(2048)	102,339	15,202	51,036	44,256	36,102	70.7	81.6
61	(2049)	101,466	15,045	50,420	43,842	36,001	71.4	82.1
62	(2050)	100,593	14,887	49,844	43,442	35,863	71.9	82.6
各年10月1日現在人口.平成12(2000)年は,総務省統計局『国勢調査報告』(年齢｢不詳人口」を按分補正した）人口による.