AGE (month)	Number of samples	−3SD		−2SD		−1SD		Median		1SD		2SD		3SD
AGE (month)	Number of samples	Fitted value	Difference	Fitted value	Difference	Fitted value	Difference	Fitted value	Difference	Fitted value	Difference	Fitted value	Difference	Fitted value	Difference
0	14,357	1.83	0.43	2.2	0.34	2.53	0.32	2.85	0.36	3.21	0.42	3.66	0.44	4.31	0.34
3	26,054	3.89	0.51	4.65	0.25	5.32	0.15	5.97	0.16	6.69	0.18	7.6	0.13	8.92	−0.21
6	21,580	4.97	0.67	5.9	0.36	6.72	0.24	7.52	0.25	8.4	0.28	9.5	0.23	11.11	−0.18
9	15,016	5.61	0.73	6.63	0.4	7.53	0.28	8.4	0.29	9.35	0.35	10.54	0.32	12.26	−0.08
12	11,946	6.14	0.73	7.22	0.39	8.17	0.28	9.09	0.31	10.09	0.39	11.35	0.38	13.16	−0.01
15	8405	6.6	0.74	7.74	0.38	8.74	0.27	9.7	0.32	10.75	0.43	12.07	0.43	13.96	0.06
18	6376	7.01	0.78	8.22	0.41	9.27	0.3	10.28	0.37	11.38	0.5	12.76	0.53	14.74	0.16
21	4312	7.45	0.81	8.73	0.42	9.85	0.3	10.92	0.38	12.09	0.52	13.56	0.56	15.66	0.19
24	4281	7.86	0.84	9.22	0.42	10.41	0.29	11.56	0.36	12.8	0.51	14.36	0.56	16.61	0.16
27	2376	8.19	0.91	9.63	0.46	10.89	0.32	12.1	0.4	13.42	0.55	15.08	0.59	17.46	0.17
30	2150	8.51	0.97	10.03	0.49	11.36	0.34	12.65	0.4	14.05	0.55	15.81	0.58	18.35	0.12
33	1588	8.84	1.02	10.44	0.5	11.85	0.33	13.21	0.38	14.71	0.51	16.58	0.53	19.29	0
36	2450	9.11	1.12	10.8	0.56	12.29	0.36	13.73	0.4	15.31	0.52	17.3	0.51	20.17	−0.07
42	1605	9.51	1.44	11.36	0.8	12.98	0.57	14.57	0.59	16.32	0.69	18.52	0.65	21.73	−0.04
48	1244	10.01	1.61	12.05	0.88	13.87	0.57	15.64	0.53	17.6	0.59	20.08	0.46	23.71	−0.41
54	817	10.29	2.01	12.5	1.21	14.48	0.85	16.43	0.79	18.59	0.83	21.34	0.66	25.39	−0.35
60	604	10.74	2.19	13.19	1.25	15.39	0.81	17.57	0.69	20.01	0.65	23.12	0.38	27.74	−0.87
66	372	11.12	2.42	13.81	1.37	16.25	0.84	18.68	0.65	21.4	0.58	24.91	0.21	30.14	−1.25
72	210	11.45	2.66	14.37	1.5	17.05	0.89	19.73	0.64	22.76	0.51	26.67	0.07	32.54	−1.6
78	81	11.64	3.02	14.78	1.77	17.67	1.11	20.59	0.85	23.9	0.71	28.2	0.26	34.7	−1.56
84	-	11.9	-	15.27	-	18.4	-	21.58	-	25.21	-	29.96	-	37.17	-