condition	mean	min	max
0 h after light	9.891645	9.79523	9.98806
4 h after light	14.22805	12.8553	15.6008
8 h after light	27.59335	26.1138	29.0729
4 h after dark	33.74865	30.7889	36.7084
8 h after dark	18.34635	16.8116	19.8811
12 h after dark	12.83035	11.0246	14.6361