Interval	L	M	S	-3 SD	-2 SD	-1 SD	Median	1 SD	2 SD	3 SD
0-3 mo	0.7558	6.0419	0.13725	3.7	4.4	5.2	6	6.9	7.8	8.6
1-4 mo	0.4737	4.5132	0.13624	2.9	3.4	3.9	4.5	5.2	5.8	6.6
2-5 mo	0.4137	3.4944	0.14382	2.2	2.6	3	3.5	4	4.6	5.2
3-6 mo	0.4858	2.8568	0.15846	1.7	2	2.4	2.9	3.3	3.8	4.4
4-7 mo	0.5992	2.384	0.17799	1.3	1.6	2	2.4	2.8	3.3	3.8
5-8 mo	0.7074	1.9903	0.20021	0.9	1.2	1.6	2	2.4	2.8	3.3
6-9 mo	0.8123	1.6704	0.22358	0.6	1	1.3	1.7	2.1	2.4	2.9
7-10 mo	0.9028	1.4214	0.24758	0.4	0.7	1.1	1.4	1.8	2.1	2.5
8-11 mo	0.9602	1.2321	0.27193	0.3	0.6	0.9	1.2	1.6	1.9	2.3
9-12 mo	0.9852	1.0768	0.29648	0.1	0.4	0.8	1.1	1.4	1.7	2