condition	mean	min	max
0 h after light	5.533025	5.33917	5.72688
4 h after light	4.529675	3.90157	5.15778
8 h after light	17.71835	16.9636	18.4731
4 h after dark	19.263550000000002	15.0489	23.4782
8 h after dark	12.8516	12.1588	13.5444
12 h after dark	4.7371	4.4164	5.0578