condition	mean	min	max
4 h after light	15.4464	15.3176	15.5752
8 h after light	17.0138	15.2672	18.7604
12 h after light	19.92105	19.5078	20.3343
4 h after dark	27.04925	27.0452	27.0533
8 h after dark	24.180999999999997	22.4638	25.8982
12 h after dark	20.3272	19.914	20.7404