condition	mean	min	max
4 h after light	19.37025	18.1184	20.6221
8 h after light	16.436799999999998	16.3035	16.5701
12 h after light	16.67085	15.0839	18.2578
4 h after dark	24.4657	23.7885	25.1429
8 h after dark	23.82695	23.4966	24.1573
12 h after dark	22.47775	22.2481	22.7074