複産の出生の推移
H9H10H11H12H13H14H15H16H17H18H19H20H21H22H23H24H25H26H27H28
72,99275,20673,73874,73673,05771,82370,23670,41767,11069,99970,21871,02969,76869,87268,97367,91366,82565,21865,61564,226
1,3791,5191,5771,6451,6131,6791,8091,8871,6831,7481,5731,5491,4421,3541,3691,4591,4111,3261,3981,466
1,000g未満4324363239364551333835473838244647325145
1,000～1,500g未満8772719290831021121099781616958638181587670
1,500～2,000g未満223270270296291301316303318309279250263294230235245247249257
2,000～2,500g未満596700740739691784831871793811775754728631670707694658649683
1.92.02.12.22.22.32.62.72.52.52.22.22.11.92.02.12.12.02.12.3
1,000g未満3.11.62.31.92.42.12.52.72.02.22.23.02.62.81.83.23.32.43.63.1
1,000～1,500g未満6.34.74.55.65.64.95.65.96.55.55.13.94.84.24.65.65.74.45.44.8
1,500～2,000g未満16.217.817.118.018.017.917.516.118.917.717.716.118.221.516.816.117.418.617.817.5
2,000～2,500g未満43.246.146.944.942.846.745.946.247.146.449.348.750.546.648.948.549.249.646.446.6
低出生体重児（再掲）
低出生体重児（再掲）
複産の出生数
複産の出生割合