Interval	L	M	S	-3 SD	-2 SD	-1 SD	Median	1 SD	2 SD	3 SD
0-4 mo	0.8123	13.0081	0.10744	9	10.3	11.6	13	14.4	15.9	17.3
1-5 mo	0.8123	10.6621	0.12126	6.9	8.1	9.4	10.7	12	13.3	14.7
2-6 mo	0.8123	8.7302	0.13625	5.3	6.4	7.6	8.7	9.9	11.2	12.4
3-7 mo	0.8123	7.4606	0.15069	4.2	5.3	6.4	7.5	8.6	9.8	11
4-8 mo	0.8123	6.5992	0.16368	3.5	4.5	5.5	6.6	7.7	8.8	10
5-9 mo	0.8123	6.0664	0.1724	3.1	4	5	6.1	7.1	8.2	9.3
6-10 mo	0.8123	5.7273	0.17782	2.8	3.8	4.7	5.7	6.8	7.8	8.9
7-11 mo	0.8123	5.4731	0.18189	2.7	3.6	4.5	5.5	6.5	7.5	8.6
8-12 mo	0.8123	5.2575	0.18562	2.5	3.4	4.3	5.3	6.2	7.3	8.3
9-13 mo	0.8123	5.055	0.18974	2.4	3.2	4.1	5.1	6	7	8.1
10-14 mo	0.8123	4.8763	0.19407	2.2	3.1	3.9	4.9	5.8	6.8	7.9
11-15 mo	0.8123	4.7084	0.19893	2.1	2.9	3.8	4.7	5.7	6.6	7.7
12-16 mo	0.8123	4.5658	0.20385	2	2.8	3.7	4.6	5.5	6.5	7.5
13-17 mo	0.8123	4.4427	0.2088	1.9	2.7	3.5	4.4	5.4	6.4	7.4
14-18 mo	0.8123	4.3256	0.21372	1.7	2.6	3.4	4.3	5.3	6.2	7.2
15-19 mo	0.8123	4.2141	0.21816	1.7	2.5	3.3	4.2	5.2	6.1	7.1
16-20 mo	0.8123	4.0974	0.2224	1.6	2.4	3.2	4.1	5	6	7
17-21 mo	0.8123	3.9825	0.22623	1.5	2.3	3.1	4	4.9	5.9	6.8
18-22 mo	0.8123	3.866	0.22998	1.4	2.2	3	3.9	4.8	5.7	6.7
19-23 mo	0.8123	3.7559	0.23357	1.3	2.1	2.9	3.8	4.7	5.6	6.5
20-24 mo	0.8123	3.6558	0.23694	1.3	2	2.8	3.7	4.5	5.5	6.4