condition	mean	min	max
4 h after light	17.2761265	15.703406	18.848847
8 h after light	15.419540999999999	15.342984	15.496098
12 h after light	17.5484245	17.325014	17.771835
4 h after dark	17.733848000000002	17.137755	18.329941
8 h after dark	20.408574	20.30205	20.515098
12 h after dark	12.944109	12.944109	12.944109