From: Initiation of breastfeeding within 120 minutes after birth is associated with breastfeeding at four months among Japanese women: A self-administered questionnaire survey
Year
Breastfeeding at one month (%)
Breastfeeding at three months (%)
1960
70.5
56.4
1970
31.7
31.0
1980
45.7
34.6
1990
44.1
37.5
2000
44.8
39.4