condition	mean	min	max
0 h after light	11.19815	9.997	12.3993
4 h after light	18.45975	17.6009	19.3186
8 h after light	21.378950000000003	19.6258	23.1321
4 h after dark	16.627200000000002	15.0204	18.234
8 h after dark	14.0016	12.7656	15.2376
12 h after dark	13.29345	12.3606	14.2263