3-5  出生孩次构成
composition of women population by number of living children born
               
单位:%             (%)
  item 1981 1989 1995 2000 2006 2007
               
一孩       1st birth 40.9 46.2 64.6 74.5 71.6 69.6
二孩       2nd birth 29.8 32.2 28.6 23.3 26.5 28.5
三孩及以上 3rd birth and above 29.3 21.6 6.8 2.2 1.9 1.9
               
               
注:1981年、1989年、2000年为人口普查数,1995年为1%人口抽样调查数,2006年及2007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 2006 and 2007 are from 
fluctuant sample surrey on population.