Number of Group	BIC	∆BICb
1	−353,621.1	Not applicable
2	−33,8347.9	15,273.2
3	−33,2614.9	5,733
4	−32,9808.4	2,806.5
5	−32,8178.7	1,629.7
6	−32,7229.1	949.6
7	−32,6665.9	563.2
8	−32,6316.9	349.0
9	−32,5754.4	562.5
10	−32,5551.7	202.7
11	−32,5567.8	−16.1
12	−32,5230.3	337.5
13	−32,5012.4	217.9
14	−32,4841.7	170.7
15	−32,4743.4	98.3
16	−32,4601.8	141.6
17	−32,4544.4	57.4
18	−32,4481.9	62.5
19	−32,4438.9	43.0
20	−32,4460.2	−21.3
21	−32,4318.0	142.2
22	−32,4311.6	6.4
23	−32,4204.7	106.9
24	−32,4214.5	−9.8
25	−32,4179.4	35.1
26	−32,4121.1	58.3
27	−32,4084.9	36.2
28	−32,4188.9	−104.0
29	−32,4123.2	65.7
30	−32,4152.1	−28.9

^a All models are quadratic.

^b ∆BIC = BIC_{group = k+1} – BIC_{group = k}.