condition	mean	min	max
4 h after light	37.4989	34.4167	40.5811
8 h after light	31.6179	30.6376	32.5982
12 h after light	27.111849999999997	26.3908	27.8329
4 h after dark	18.46665	16.9274	20.0059
8 h after dark	19.54955	18.6992	20.3999
12 h after dark	26.52225	25.9736	27.0709