condition	mean	min	max
4 h after light	6.102	5.83333	6.4282699999999995
8 h after light	6.17074	5.86775	6.54378
12 h after light	6.011286666666667	5.8156	6.37322
4 h after dark	6.368	6.10348	6.778060000000001
8 h after dark	6.17503	5.63795	6.59103
12 h after dark	6.07293	5.7544	6.53001