condition	mean	min	max
0 h after light	6.3121849999999995	5.4234	7.20097
4 h after light	11.3621	10.0057	12.7185
8 h after light	10.9608	10.5218	11.3998
4 h after dark	15.8306	14.8114	16.8498
8 h after dark	9.529815	9.31271	9.74692
12 h after dark	5.781795	4.71765	6.84594