condition	mean	min	max
4 h after light	15.43945	12.9615	17.9174
8 h after light	13.889050000000001	13.6668	14.1113
12 h after light	14.7697	14.5591	14.9803
4 h after dark	20.7556	19.4978	22.0502
8 h after dark	23.4117	23.1243	23.599
12 h after dark	17.856666666666666	17.3211	18.5121