condition	mean	min	max
4 h after light	17.881999999999998	16.5433	19.2207
8 h after light	16.9732	16.2539	17.6925
12 h after light	19.6899	18.9294	20.4504
4 h after dark	20.73735	18.7901	22.6846
8 h after dark	27.4036	26.2571	28.5501
12 h after dark	24.579	23.8721	25.2859