condition	mean	min	max
4 h after light	5.21615	4.14934	6.28296
8 h after light	5.73485	5.22903	6.24067
12 h after light	6.04433	5.95074	6.13792
4 h after dark	8.135086666666666	7.51481	8.48901
8 h after dark	6.569223333333333	6.18218	6.92202
12 h after dark	5.41915	5.01666	5.69736