condition	mean	min	max
4 h after light	14.69525	12.029	17.3615
8 h after light	18.6673	18.474	18.8606
12 h after light	19.69255	19.5331	19.852
4 h after dark	29.506600000000002	25.7296	31.6918
8 h after dark	21.064899999999998	20.7763	21.3722
12 h after dark	23.644933333333334	18.5125	30.8435