condition	mean	min	max
0 h after light	19.083849999999998	17.9764	20.1913
4 h after light	8.19997	7.51916	8.88078
8 h after light	15.2304	9.9812	20.4796
4 h after dark	15.81535	14.9801	16.6506
8 h after dark	19.9545	15.022	24.887
12 h after dark	14.5164	13.6002	15.4326