condition	mean	min	max
4 h after light	22.94045	21.6756	24.2053
8 h after light	18.26315	17.29	19.2363
12 h after light	19.8325	19.0644	20.6006
4 h after dark	18.889049999999997	17.7107	20.0674
8 h after dark	21.4049	19.7755	23.0343
12 h after dark	25.620449999999998	24.6954	26.5455