condition	mean	min	max
4 h after light	17.6544755	15.310987	19.997964
8 h after light	27.698691500000002	22.657754	32.739629
12 h after light	23.6700035	20.563846	26.776161
4 h after dark	20.588316	19.886809	21.289823
8 h after dark	18.585583	16.60732	20.563846
12 h after dark	19.30121	19.30121	19.30121