condition	mean	min	max
4 h after light	18.625216	17.645789	19.604643
8 h after light	15.726682499999999	14.759016	16.694349
12 h after light	23.5927175	20.290397	26.895038
4 h after dark	22.210634499999998	21.783434	22.637835
8 h after dark	22.546802999999997	19.604643	25.488963
12 h after dark	20.501242	20.501242	20.501242