From: Epidemiology of birth defects based on surveillance data from 2011–2015 in Guangxi, China: comparison across five major ethnic groups
Year
Han
Zhuang
Miao
Dong
Yao
2011
24.25
25.49
24.27
16.02
13.83
2012
25.92
13.57
13.09
7.87
10.38
2013
33.22
29.13
14.77
16.48
27.54
2014
31.71
29.61
18.76
16.91
20.15
2015
29.27
28.94
12.30
15.41
18.92