condition	mean	min	max
0 h after light	6.120415	5.79201	6.44882
4 h after light	7.473135	7.01592	7.93035
8 h after light	7.81141	7.70014	7.92268
4 h after dark	10.7235	10.2647	11.1823
8 h after dark	8.356515	8.17165	8.54138
12 h after dark	7.78689	6.8843	8.68948