condition	mean	min	max
4 h after light	20.5005	18.0658	22.9352
8 h after light	17.0957	14.693	19.4984
12 h after light	15.33835	14.9564	15.7203
4 h after dark	21.241333333333333	20.8756	21.7367
8 h after dark	22.1959	18.3318	25.1675
12 h after dark	25.468	22.7933	30.0297