condition	mean	min	max
0 h after light	6.48543	6.47965	6.49121
4 h after light	12.9571	11.1196	14.7946
8 h after light	6.83334	6.07516	7.59152
4 h after dark	21.057450000000003	20.3439	21.771
8 h after dark	23.17855	20.8305	25.5266
12 h after dark	13.089590000000001	8.85498	17.3242