condition	mean	min	max
4 h after light	11.26681	4.81403	18.847
8 h after light	7.30264	1.8277	12.9406
12 h after light	9.51966	5.18069	15.1384
4 h after dark	13.334313333333332	8.35104	17.5966
8 h after dark	11.169003333333334	7.14301	13.2363
12 h after dark	13.963933333333333	10.6586	18.8655