condition	mean	min	max
0 h after light	7.356625000000001	6.57612	8.13713
4 h after light	3.8734	3.77542	3.97138
8 h after light	4.46084	4.3973	4.52438
4 h after dark	4.74466	4.36521	5.12411
8 h after dark	5.780135	5.29718	6.26309
12 h after dark	6.0581700000000005	4.80959	7.30675