condition	mean	min	max
0 h after light	5.1463350000000005	4.94533	5.34734
4 h after light	5.603565	4.31907	6.88806
8 h after light	18.6779	16.6203	20.7355
4 h after dark	20.46835	19.5045	21.4322
8 h after dark	11.332550000000001	10.8367	11.8284
12 h after dark	6.300995	4.70351	7.89848