40
50
60
70
80
90
100
110
120
130
140
150
160
0.002
0.004
0.006
0.008
0.010
0.012
0.014
0.016
0.018
0.020
0.022
0.024
0.026
2.3%
4.8%
590,000 more children with low IQ
119 million IQ points lost
in a population of 23.7 million children
95