condition	mean	min	max
4 h after light	20.3003	15.5855	25.0151
8 h after light	22.52295	19.7959	25.25
12 h after light	21.6212	19.5719	23.6705
4 h after dark	41.78545	38.7914	44.7795
8 h after dark	50.56815	47.654	53.4823
12 h after dark	34.17405	32.6032	35.7449