condition	mean	min	max
4 h after light	18.2575	18.122	18.393
8 h after light	11.34045	11.2372	11.4437
12 h after light	12.7837	11.8542	13.7132
4 h after dark	16.779200000000003	16.5726	16.9858
8 h after dark	20.981949999999998	19.2827	22.6812
12 h after dark	20.93835	20.6715	21.2052