表8-7a  全国分年龄、性别的独生子女数(城市)
	单位：人、%
年    龄	0-30岁独生	男	女	性别比
	子女人数			（女=100）
总    计	849,073	458,347	390,726	117.31
0-4	150,573	79,172	71,401	110.88
0	32,047	16,723	15,324	109.13
1	31,049	16,223	14,826	109.42
2	26,466	13,923	12,543	111.00
3	29,830	15,703	14,127	111.15
4	31,181	16,601	14,580	113.86
5-9	153,068	83,898	69,170	121.29
5	31,800	17,153	14,647	117.11
6	29,267	15,857	13,410	118.24
7	30,874	16,972	13,903	122.08
8	30,621	16,822	13,799	121.90
9	30,506	17,095	13,411	127.47
10-14	151,728	84,970	66,758	127.28
10	31,456	17,580	13,875	126.70
11	30,471	16,866	13,605	123.96
12	30,461	16,949	13,512	125.44
13	29,760	16,796	12,965	129.55
14	29,579	16,779	12,800	131.08
15-19	153,682	85,547	68,135	125.56
15	32,786	18,256	14,530	125.64
16	33,232	18,428	14,804	124.48
17	31,619	17,621	13,998	125.88
18	30,612	17,013	13,600	125.09
19	25,434	14,231	11,203	127.03
20-24	127,778	68,153	59,625	114.30
20	22,361	12,177	10,184	119.57
21	23,270	12,376	10,895	113.59
22	25,977	13,876	12,101	114.67
23	31,152	16,526	14,626	112.99
24	25,018	13,199	11,819	111.68
25-29	91,662	46,857	44,805	104.58
25	20,944	10,834	10,110	107.16
26	20,054	10,449	9,605	108.78
27	18,879	9,838	9,041	108.82
28	15,991	7,981	8,010	99.64
29	15,794	7,755	8,039	96.47
30	20,582	9,748	10,833	89.99