3-5  出生孩次构成
composition of women population by number of living children born
单位：％							(%)
项  目	item	1981	1989	1995	2000	2003	2004
一孩	one child	40.9	46.2	64.6	74.5	75.6	72.2
二孩	two children	29.8	32.2	28.6	23.3	22.7	26.6
三孩及以上	more than two children	29.3	21.6	6.8	2.2	1.7	1.2
注:1981年、1989年、2000年为人口普查数,1995年为1％人口抽样调查数，2003年及2004年为人口变动抽样调查数。
note:data in 1981, 1989 and 2000 are census data, data in 1995 are data from sample survey on 1% population. data in 2003 and 2004 are data from fluctuant sample surrey on population.