condition	mean	min	max
0 h after light	15.56555	14.9054	16.2257
4 h after light	6.20215	5.01087	7.39343
8 h after light	3.972505	3.13522	4.80979
4 h after dark	4.203825	3.95068	4.45697
8 h after dark	6.299775	6.15081	6.44874
12 h after dark	7.788245	5.01149	10.565