condition	mean	min	max
0 h after light	6.8058250000000005	6.62475	6.9869
4 h after light	5.56497	5.39453	5.73541
8 h after light	6.80058	6.59134	7.00982
4 h after dark	7.650145	7.58776	7.71253
8 h after dark	7.55348	7.30767	7.79929
12 h after dark	6.098045	5.7296	6.46649