Source: http://www.cdc.gov/nchs/about/major/nhanes/growthcharts/wtageinf.txt
Age in
Sex Months L M S P3 P5 P10 P25 P50 P75 P90 P95 P97
1 0 1.815151075 3.530203168 0.152385273 2.355450986 2.52690402 2.773801848 3.150611082 3.530203168 3.879076559 4.17249339 4.34029274 4.446488308
1 0.5 1.547523128 4.003106424 0.146025021 2.799548641 2.964655655 3.209510017 3.597395573 4.003106424 4.387422565 4.718161283 4.910130108 5.032624982
1 1.5 1.068795548 4.879525083 0.136478767 3.614688072 3.774848862 4.020561446 4.428872952 4.879525083 5.327327567 5.728152752 5.967101615 6.121929103
1 2.5 0.695973505 5.672888765 0.129677511 4.34234145 4.503255345 4.754479354 5.183377547 5.672888765 6.175598158 6.638979132 6.921119162 7.106250132
1 3.5 0.41981509 6.391391982 0.124717085 4.992897896 5.157411653 5.416802856 5.866806254 6.391391982 6.942217106 7.460702368 7.781401145 7.993878049
1 4.5 0.219866801 7.041836432 0.121040119 5.575169066 5.744751566 6.01371624 6.484969167 7.041836432 7.635323002 8.202193202 8.556813353 8.793443663
1 5.5 0.077505598 7.630425182 0.1182712 6.096775274 6.272175299 6.551379244 7.043626918 7.630425182 8.262032991 8.871384112 9.255614546 9.51330656
1 6.5 -0.02190761 8.162951035 0.116153695 6.564430346 6.745992665 7.035656404 7.548345716 8.162951035 8.828786159 9.47546616 9.885435743 10.16135019
1 7.5 -0.0894409 8.644832479 0.114510349 6.984123338 7.171952393 7.472021438 8.004398775 8.644832479 9.34149038 10.02101374 10.45331433 10.74492376
1 8.5 -0.1334091 9.081119817 0.113217163 7.361236116 7.555286752 7.865532922 8.416718775 9.081119817 9.805593364 10.51406421 10.96573632 11.27083843
1 9.5 -0.1600954 9.476500305 0.11218624 7.700624405 7.90075516 8.220839211 8.789881892 9.476500305 10.22612395 10.96017225 11.42867623 11.74538465
1 10.5 -0.17429685 9.835307701 0.111354536 8.006677447 8.212683538 8.542195484 9.128109523 9.835307701 10.60772151 11.36445045 11.84763282 12.17435729
1 11.5 -0.1797189 10.16153567 0.110676413 8.283364855 8.494999555 8.833485623 9.43527941 10.16153567 10.9546603 11.73160184 12.2276612 12.56308347
1 12.5 -0.179254 10.45885399 0.110118635 8.534275028 8.751264252 9.098245709 9.714941801 10.45885399 11.27087147 12.06594792 12.57340193 12.91645043
1 13.5 -0.17518447 10.7306256 0.109656941 8.762648582 8.984701111 9.339687673 9.970337596 10.7306256 11.55996332 12.37145331 12.88910809 13.23893338
1 14.5 -0.16932268 10.97992482 0.109273653 8.971407287 9.198222429 9.560722369 10.20441778 10.97992482 11.82524099 12.65174864 13.17867019 13.53462171
1 15.5 -0.1631139 11.20955529 0.10895596 9.163180317 9.394453831 9.763981751 10.41986276 11.20955529 12.06972515 12.91015164 13.44563963 13.80724431
1 16.5 -0.15770999 11.4220677 0.108694678 9.340328068 9.575756968 9.951839998 10.61910138 11.4220677 12.29616991 13.14968707 13.6932508 14.0601935
1 17.5 -0.15402279 11.61977698 0.108483324 9.504964014 9.744250626 10.12643352 10.80432929 11.61977698 12.50708008 13.37310558 13.92444193 14.29654774
1 18.5 -0.15276214 11.80477902 0.108317416 9.658974787 9.901830339 10.28967982 10.97752662 11.80477902 12.70472779 13.58290165 14.14187481 14.51909298
1 19.5 -0.15446658 11.9789663 0.108193944 9.804039109 10.05018686 10.44329524 11.14047457 11.9789663 12.89116805 13.78133058 14.34795358 14.73034312
1 20.5 -0.15952202 12.14404334 0.108110954 9.941644878 10.19082308 10.58881155 11.2947714 12.14404334 13.06825426 13.9704249 14.54484233 14.93255878
1 21.5 -0.16817926 12.30154103 0.108067236 10.07310549 10.32507004 10.72759156 11.44184727 12.30154103 13.23765258 14.15200982 14.73448194 15.12776542
1 22.5 -0.1805668 12.45283028 0.108062078 10.19957488 10.45410181 10.86084353 11.58297823 12.45283028 13.40085582 14.3277181 14.91860604 15.31777023
1 23.5 -0.19670196 12.59913494 0.108095077 10.32206165 10.57894925 10.98963476 11.7192993 12.59913494 13.55919667 14.49900418 15.09875606 15.50417803
1 24.5 -0.21650121 12.74154396 0.108166005 10.4414422 10.70051298 11.11490406 11.85181666 12.74154396 13.71386029 14.6671577 15.27629562 15.68840631
1 25.5 -0.23979048 12.88102276 0.108274705 10.55847309 10.81957536 11.23747341 11.98141892 12.88102276 13.86589625 14.83331632 15.45242405 15.87169941
1 26.5 -0.26631585 13.01842382 0.108421024 10.67380261 10.93681171 11.35805876 12.10888759 13.01842382 14.0162298 14.99847794 15.62818936 16.05514188
1 27.5 -0.29575496 13.1544966 0.108604769 10.78798156 11.05280067 11.47727994 12.23490671 13.1544966 14.1656725 15.16351231 15.80450043 16.23967114
1 28.5 -0.32772936 13.28989667 0.108825681 10.90147346 11.168034 11.59566994 12.36007175 13.28989667 14.31493214 15.32917196 15.98213866 16.42608957
1 29.5 -0.36181746 13.42519408 0.109083423 11.01466395 11.28292555 11.7136834 12.48489772 13.42519408 14.46462206 15.49610261 16.16176896 16.61507584
1 30.5 -0.39756808 13.56088113 0.109377581 11.12786972 11.3978197 11.8317045 12.60982671 13.56088113 14.61526973 15.66485286 16.34395024 16.80719582
1 31.5 -0.43452025 13.69737858 0.109707646 11.24134752 11.51299966 11.95005435 12.73523417 13.69737858 14.76732387 15.83588308 16.52914562 17.00291386
1 32.5