condition	mean	min	max
4 h after light	21.35785	16.801	25.9147
8 h after light	40.05485	38.2812	41.8285
12 h after light	40.07355	36.372	43.7751
4 h after dark	38.36285	34.6574	42.0683
8 h after dark	24.42775	24.3129	24.5426
12 h after dark	25.0284	24.1276	25.9292