condition	mean	min	max
4 h after light	19.165894	18.280943	20.050845
8 h after light	21.508831999999998	19.970245	23.047419
12 h after light	20.2188	18.877867	21.559733
4 h after dark	17.222410500000002	16.781217	17.663604
8 h after dark	17.208304499999997	16.841772	17.574837
12 h after dark	24.005474	24.005474	24.005474