condition	mean	min	max
0 h after light	11.6915	11.4604	11.9226
4 h after light	13.4722	11.903	15.0414
8 h after light	27.9624	26.3299	29.5949
4 h after dark	28.1169	24.7786	31.4552
8 h after dark	19.6574	19.2823	20.0325
12 h after dark	11.34375	10.679	12.0085