condition	mean	min	max
0 h after light	12.67025	11.8796	13.4609
4 h after light	10.75371	8.68982	12.8176
8 h after light	6.24086	5.54896	6.93276
4 h after dark	13.529150000000001	10.0726	16.9857
8 h after dark	21.20025	20.5962	21.8043
12 h after dark	15.636299999999999	14.7891	16.4835