condition	mean	min	max
4 h after light	15.161696500000001	13.679553	16.64384
8 h after light	13.852467	12.801	14.903934
12 h after light	15.113818	12.11496	18.112676
4 h after dark	13.274608	11.508292	15.040924
8 h after dark	9.778884	9.719303	9.838465
12 h after dark	11.529757	11.529757	11.529757