condition	mean	min	max
4 h after light	17.8091	17.7295	17.8887
8 h after light	14.46335	14.2814	14.6453
12 h after light	12.53245	11.8355	13.2294
4 h after dark	15.553550000000001	15.2933	15.8138
8 h after dark	16.758899999999997	16.7477	16.7701
12 h after dark	20.4699	20.2	20.7398